Tag: antimicrobial resistance

­­The Hidden Pandemic: COVID-19’s Impact on Antimicrobial Resistance

by dkellogg97, posted in Commentary

By Theresa Hoang, Biodefense MS Student

Introduction

The COVID-19 global pandemic has threatened public health security by adversely altering the health of patients and overwhelming hospital systems throughout the world. Not only is COVID-19 a global health threat, but antimicrobial resistance (AMR) is a public health crisis too. AMR happens when microbes become resistant to antimicrobials that are designed to kill them.[1] AMR contributes to healthcare-associated infections (HAI)­ in patients, which spreads within healthcare facilities and throughout the community and environment.[2] The CDC reports that “each year in the U.S., at least 2.8 million people are infected with antibiotic-resistant bacteria or fungi, and more than 35,000 people die as a result.”1 AMR is a serious public health concern, especially during the pandemic, because experts have noted that COVID-19 may have reversed the progress on reducing AMR by creating a “perfect storm” for antibiotic-resistant infections in healthcare settings.[3] How has the COVID-19 pandemic impacted AMR in clinical patients, and why is it important? This issue is important because it affects patients, who are undergoing antibiotic treatments, and healthcare systems that are trying to prevent the spread of AMR. The current literature has discussed extensively the direct and indirect effects of the COVID-19 pandemic on AMR. A group of authors focuses on the increase of secondary drug-resistant infections and how they are affecting COVID-19 patients. Another group discusses the deterioration of healthcare systems allowing AMR transmission to escalate. Other authors analyze the disruption of antibiotic stewardship and its adverse effects during the pandemic. To fight against this growing pandemic, patients should work together with their healthcare providers to learn about the troubling effects of AMR and how to prevent it from spreading by practicing enhanced antimicrobial stewardship.

Secondary Drug-Resistant Infections from AMR

The surge in AMR during the pandemic has resulted in a rise of secondary drug-resistant infections. The three drug-resistant microorganisms that will be discussed are methicillin-resistant Staphylococcus aureus (MRSA), carbapenem-resistant Enterobacterales (CREs), and Candida auris.

Scanning Electron Micrograph of MRSA (from CDC)

Methicillin-resistant Staphylococcus aureus

MRSA is commonly spread in healthcare facilities and communities, and it can cause staphylococcus infections that are usually difficult to treat because of its resistance to some antibiotics.[4] Segala et. al explain that, during the pandemic, MRSA co-infections have increased significantly in COVID-19 patients who were admitted to intensive care units (ICUs).[5] “Up to 86.4% of all COVID-19 patients admitted to the ICU received a wide spectrum antibiotic therapy,” which helps treat against a vast majority of co-infections, including MRSA.5 However, exposing patients to these unnecessary antibiotics in a combination therapy can induce AMR. In another case study completed in Italy on mechanically ventilated patients, researchers compared the proportion of ventilator associated pneumonia (VAP) due to MRSA, between COVID-19 patients and non-COVID-19 patients.5 They found VAP rates were significantly higher in COVID-19 patients due to receiving a broad spectrum antibiotic therapy. Their findings also suggest there is higher rate of MRSA colonization and environmental contamination in COVID-19 ICUs.5 MRSA has not only evolved to become more resistant to antibiotics, but it continues to spread and colonize in healthcare facilities and other communities, in addition to infecting COVID-19 patients at increasing rates.

Infographic of the Risk of CRE Infections (from CDC)

Carbapenem-Resistant Enterobacterales (CREs)

Carbapenem-resistant Enterobacterales (CREs), formerly known as CR Enterobacteriaceae and nicknamed “Nightmare bacteria,” are a large group of different types of Gram-negative bacteria, such as Escherichia coli (E. coli) and Klebsiella pneumoniae, that commonly causes multiple infections in humans and in healthcare settings. CREs also develop resistance to a group of antibiotics called carbapenems.[6] CRE infections are spread from person-to-person by infecting or colonizing people (without causing infections or symptoms), specifically contact with wounds or stool, and through medical devices that have not been properly cleaned.[7]

CREs are a threat to public health because they are difficult to treat and are resistant to almost all available antibiotics.6 Their resistance comes from producing carbapenemases, which are enzymes that spread to other germs and cause resistance in carbapenems, rendering them ineffective.4 The CDC states that high levels of antibiotic resistance in CREs necessitate more toxic and less effective treatments, harming patient outcomes.7

Studies have shown that CRE infections are increasing among COVID-19 patients. According to a recent review on CRE infections during the pandemic, “secondary infections caused by CR-Klebsiella pneumoniae (Cr-Kp) show high prevalence of co-infection in COVID-19 patients.”5 Researchers have noticed that CR-Kp colonization and infections were associated with a high mortality rate in COVID-19 patients and increased use of antimicrobial agents.5 This represents a significant challenge for both infection control and clinical practice because as new antibiotics continue to be overused, CRE infections continue to rise and manifest in healthcare facilities and throughout communities.

Candida auris on CHROMagar Candida after Salt Sab Dulcitol Broth enrichment (from CDC)

Candida auris

Candida auris is an emerging multidrug-resistant (MDR) yeast that brings severe infections and spreads easily between hospitalized patients and nursing home residents through skin-to-skin contact.4 It can also cause invasive infections by entering the bloodstream, and even cause wound and ear infections.[8] Moreover, C. auris can trigger outbreaks in healthcare settings by contaminating hospital surfaces and medical equipment, especially if they are used for COVID-19 critical care. This indicates that patients are at high risk of C. auris colonization and infections.[9]

C. auris is an extreme public health threat to communities, and it has become a more serious concern during the pandemic. Since some patients with severe COVID-19 have required intubation and other invasive devices, they are put at a higher risk of C. auris infections; the pandemic may have contributed to an increase in these cases.[10] In another report from the CDC, 39 cases of C. auris have appeared in Florida during the pandemic that were attributed to “unconventional personal protective equipment (PPE) practices and environmental contamination.”[11] Risk factors like these have caused critically ill COVID-19 patients with C. auris infections to stay longer at ICUs and require antifungal drugs for long periods of time.5 This proves that improper and extended use of PPE has played a role in self-contamination and transmission of C. auris among COVID-19 patients.5 To prevent C. auris from spreading, especially among COVID patients, it must be detected immediately and IPC practices must be implemented.

Overall, the three different pathogens share a common goal, which is to induce AMR and increase secondary infections among patients. These drug-resistant microorganisms are a few out of the many other agents that have impacted patients during the COVID-19 pandemic.

AMR Implications for Healthcare Systems

Additionally, during the COVID-19 pandemic, the exacerbation of healthcare systems has increased transmission of AMR. Studies have shown that the rise of AMR in healthcare facilities was caused by a variety of factors, such as prolonged stays in the ICU,[12] overcrowding,[13] “contaminated PPE, increased workload among hospital staff, and prolonged glove usage.”[14] Furthermore, “shortages of PPE, staff shortages, fatigue, and deployment of inexperienced staff members with only basic training” are other factors that may contribute to the increased risk of AMR.[15] These determinants not only led to a surge in AMR, but also increases in morbidity, mortality, and healthcare costs for patients.14

To reduce AMR from escalating any further, Rawson et. al propose that social distancing, increased hand hygiene practice, and pre-emptive discharge of patients and cancellation of routine procedures are potential interventions that healthcare systems can implement during the pandemic.13 In addition, Knight et. al mention “enhanced infection prevention and PPE usage and control measures, in response to the COVID-19 pandemic, will help prevent infections and limit the spread of AMR.”15 Therefore, better health infrastructure and enhanced IPC measures set in place mean minimization of AMR amongst patients.

Disruption of Antimicrobial Stewardship

Disruption of antibiotic stewardship is another problem that needs to be addressed with the rise of AMR driven by COVID-19. Antimicrobial stewardship (AMS) is “promoting the appropriate use of antimicrobials, improving patient outcomes, reducing AMR, and decreasing spread of infections caused by multidrug-resistant organisms (MDROs).”[16] However, AMS has not been emphasized enough during the pandemic. For instance, researchers are concerned that increased antibiotic use during the pandemic could enhance the long-term threat of AMR.[17] Popescu states that “misuse and overprescribing of antibiotics, poor stewardship, and generalized lack of surveillance,” are some reasons why AMR continues to be a public health problem.[18]

Moreover, misinformation on antibiotic use (whether it is low public awareness or increased consumption of them) is another factor that may enhance the rise and spread of AMR.[19] For example, Arshad et. al explain that 44% of respondents to a population survey in Australia assumed that antibiotics could treat or prevent COVID-19, and university students in Jordan who believed in conspiracy theories around COVID-19 also thought antibiotics can cure it.[20] Additionally, clinical uncertainty about the disease process and pathology of an infection can increase antibiotic use. “When clinicians do not have all the necessary information to truly understand what is happening to the patient, they tend to prescribe more antibiotics.”17 Altogether, these factors can increase the spread of AMR and disrupt AMS.

In contrast, Toro-Alzate et. al argue that “telemedicine consultations could be useful to educate patients on improving antibiotic use.”19 But at the same time, they mention how telemedicine can also increase over-prescription of antibiotics due to physicians’ decision making.19 Because they are not with patients in-person, healthcare providers tend to misdiagnose more often and not order as much lab tests with these remote services.

#BeAntibioticsAware: Do I really need antibiotics? (from CDC)

Another AMS strategy is using social media to manage online media campaigns that combat misinformation of antibiotic use. Some organizations, such as WHO and Nigeria Centre for Disease Control, correct antimicrobial misinformation and discuss ineffectiveness of antibiotics as a treatment for COVID-19 by using their digital platforms.20 Taking everything into consideration and how the pandemic impacted the public health community, AMS must be further improved and emphasized among patients and healthcare providers to reduce AMR.

Are Hospital Stays of COVID-19 Patients (with AMR) Longer than Those of Non-COVID Patients?

The literature does not yet analyze the question of whether the length of hospital stays for COVID-19 patients with AMR are longer compared to hospital stays of non-COVID-19 patients. One study has claimed that AMR has led to adverse consequences for patients, including “more prolonged hospital admissions.”[21] Srinivasan mentions and compares the patient discharge data and AMR rates between patients with influenza-like illness and COVID-19.11 Yet, the data between patients with flu and COVID-19 were collected at different time frames.

Source: CAPT Arjun Srinivasan, MD, USPHS (CDC PowerPoint)

In the current literature, there is no evidence and comparison recorded between hospital stays of COVID-19 and non-COVID patients during the pandemic, over the same time period. Considering that the surge in AMR has been driven by the pandemic, and that it has caused ill patients to stay at hospitals based on their conditions, it is hypothesized that COVID-19 patients with AMR have stayed at the hospitals much longer than non-COVID patients during the pandemic. To examine this gap, further research needs to be conducted by attempting to gather data through a survey and compare hospital stay rates between COVID-19 and non-COVID patients from different hospitals in the Northern Virginia area. This would also explore the critical steps needed to treat patients with AMR and to mitigate its transmission before discharging patients.

Conclusion

Antibiotics save lives but any time antibiotics are used, they can induce side effects and lead to AMR.4 Along with the rise in AMR, COVID-19 has compounded this issue, creating more challenges for patients and hospital systems to overcome. The surge of secondary infections among patients, the exacerbation of hospital infrastructures, and the disruption of antimicrobial stewardship are the results of COVID-19’s impact on AMR.

Bibliography

Arshad, Mehreen, Syed Faisal Mahmood, Mishal Khan, and Rumina Hasan. 2020. “COVID-19, Misinformation, and Antimicrobial Resistance.” BMJ371 (November): m4501. https://doi.org/10.1136/bmj.m4501.

CDC. 2021. “Candida auris.” Centers for Disease Control and Prevention. July 19, 2021. https://www.cdc.gov/fungal/candida-auris/index.html.

CDC. 2021. “CRE: Healthcare-Associated Infections (HAI).” Centers for Disease Control and Prevention. April 7, 2021. https://www.cdc.gov/hai/organisms/cre/index.html.

​​CDC. 2021. “Patients | CRE | HAI”. Centers for Disease Control and Prevention. February 18, 2021. https://www.cdc.gov/hai/organisms/cre/cre-patients.html.

CDC. 2020. “What Exactly Is Antibiotic Resistance?” Centers for Disease Control and Prevention. March 13, 2020. https://www.cdc.gov/drugresistance/about.html.

CDC. 2020. “Where Antibiotic Resistance Spreads.” Centers for Disease Control and Prevention. March 10, 2020. https://www.cdc.gov/drugresistance/about/where-resistance-spreads.html.

Centers for Disease Control and Prevention (U.S.). 2019. “Antibiotic Resistance Threats in the United States, 2019.” Centers for Disease Control and Prevention (U.S.). https://doi.org/10.15620/cdc:82532.

Jul 27, Chris Dall | News Reporter | CIDRAP News | and 2021. n.d. “CDC Reports Two Outbreaks of Pan-Resistant Candida Auris.” CIDRAP. Accessed October 6, 2021. https://www.cidrap.umn.edu/news-perspective/2021/07/cdc-reports-two-outbreaks-pan-resistant-candida-auris.

Chowdhary, Anuradha, and Amit Sharma. 2020. “The Lurking Scourge of Multidrug Resistant Candida Auris in Times of COVID-19 Pandemic.” Journal of Global Antimicrobial Resistance 22 (September): 175–76. https://doi.org/10.1016/j.jgar.2020.06.003.

“COVID-19 & Antibiotic Resistance | CDC.” 2021. June 8, 2021. https://www.cdc.gov/drugresistance/covid19.html.

Hsu, Jeremy. “How Covid-19 is Accelerating the Threat of Antimicrobial Resistance.” BMJ: British Medical Journal (Online) 369, (May 18, 2020). http://dx.doi.org.mutex.gmu.edu/10.1136/bmj.m1983.

Knight, Gwenan M., Rebecca E. Glover, McQuaid C. Finn, Ioana D. Olaru, Gallandat Karin, Quentin J. Leclerc, Naomi M. Fuller, et al. 2021. “Antimicrobial Resistance and COVID-19: Intersections and Implications.” ELife 10. http://dx.doi.org/10.7554/eLife.64139.

Majumder, Md Anwarul Azim, Sayeeda Rahman, Damian Cohall, Ambadasu Bharatha, Keerti Singh, Mainul Haque, and Marquita Gittens-St Hilaire. 2020. “Antimicrobial Stewardship: Fighting Antimicrobial Resistance and Protecting Global Public Health.” Infection and Drug Resistance 13: 4713–38. http://dx.doi.org/10.2147/IDR.S290835.

Manning, Mary Lou, Edward J. Septimus, Elizabeth S. Dodds Ashley, Sara E. Cosgrove, Mohamad G. Fakih, Steve J. Schweon, Frank E. Myers, and Julia A. Moody. 2018. “Antimicrobial Stewardship and Infection Prevention—Leveraging the Synergy: A Position Paper Update.” American Journal of Infection Control 46 (4): 364–68. https://doi.org/10.1016/j.ajic.2018.01.001.

Popescu, Saskia. 2019. “The Existential Threat of Antimicrobial Resistance.” Bulletin of the Atomic Scientists 75 (6): 286–89. https://doi.org/10.1080/00963402.2019.1680053.

Rawson, Timothy M, Luke S P Moore, Enrique Castro-Sanchez, Esmita Charani, Frances Davies, Giovanni Satta, Matthew J Ellington, and Alison H Holmes. 2020. “COVID-19 and the Potential Long-Term Impact on Antimicrobial Resistance.” Journal of Antimicrobial Chemotherapy 75 (7): 1681–84. https://doi.org/10.1093/jac/dkaa194.

Segala, Francesco Vladimiro, Davide Fiore Bavaro, Francesco Di Gennaro, Federica Salvati, Claudia Marotta, Annalisa Saracino, Rita Murri, and Massimo Fantoni. 2021. “Impact of SARS-CoV-2 Epidemic on Antimicrobial Resistance: A Literature Review.” Viruses 13 (11): 2110. https://doi.org/10.3390/v13112110.

​​Srinivasan, Arjun. “The Intersection of Antibiotic Resistance (AR), Antibiotic Use (AU), and COVID-19.” Centers for Disease Control and Prevention. February 10, 2021. https://www.hhs.gov/sites/default/files/antibiotic-resistance-antibiotic-use-covid-19-paccarb.pdf.

Sun Jin, Louisa and Fisher, Dale. 2021. “MDRO Transmission in Acute Hospitals during the COVID-19 Pandemic.” Wolters Kluwer Health, Inc. (34) 4: 365–371.

Toro-Alzate, Luisa, Karlijn Hofstraat, and Daniel H de Vries. 2021. “The Pandemic beyond the Pandemic: A Scoping Review on the Social Relationships between COVID-19 and Antimicrobial Resistance.” International Journal of Environmental Research and Public Health 18 (16): 1–20. https://doi.org/10.3390/ijerph18168766.        

Vidyarthi, Ashima Jain, Arghya Das, and Rama Chaudhry. 2021. “Antimicrobial Resistance and COVID-19 Syndemic: Impact on Public Health.” Drug Discoveries & Therapeutics 15 (3): 124–29. https://doi.org/10.5582/ddt.2021.01052.

[1] CDC. 2020. “What Exactly Is Antibiotic Resistance?” Centers for Disease Control and Prevention. March 13, 2020. https://www.cdc.gov/drugresistance/about.html.

[2] CDC. 2020. “Where Antibiotic Resistance Spreads.” Centers for Disease Control and Prevention. March 10, 2020. https://www.cdc.gov/drugresistance/about/where-resistance-spreads.html.

[3] “COVID-19 & Antibiotic Resistance | CDC.” 2021. June 8, 2021. https://www.cdc.gov/drugresistance/covid19.html.

[4] Centers for Disease Control and Prevention (U.S.). 2019. “Antibiotic Resistance Threats in the United States, 2019.” Centers for Disease Control and Prevention (U.S.). https://doi.org/10.15620/cdc:82532.

[5] Segala, Francesco Vladimiro, Davide Fiore Bavaro, Francesco Di Gennaro, Federica Salvati, Claudia Marotta, Annalisa Saracino, Rita Murri, and Massimo Fantoni. 2021. “Impact of SARS-CoV-2 Epidemic on Antimicrobial Resistance: A Literature Review.” Viruses 13 (11): 2110. https://doi.org/10.3390/v13112110.

[6] CDC. 2021. “CRE: Healthcare-Associated Infections (HAI).” Centers for Disease Control and Prevention. April 7, 2021. https://www.cdc.gov/hai/organisms/cre/index.html.

[7] CDC. 2021. “Patients | CRE | HAI”. Centers for Disease Control and Prevention. February 18, 2021. https://www.cdc.gov/hai/organisms/cre/cre-patients.html

[8] CDC. 2021. “Candida auris.” Centers for Disease Control and Prevention. July 19, 2021. https://www.cdc.gov/fungal/candida-auris/index.html.

[9] Chowdhary, Anuradha, and Amit Sharma. 2020. “The Lurking Scourge of Multidrug Resistant Candida Auris in Times of COVID-19 Pandemic.” Journal of Global Antimicrobial Resistance 22 (September): 175–76. https://doi.org/10.1016/j.jgar.2020.06.003.

[10] Jul 27, Chris Dall | News Reporter | CIDRAP News | and 2021. n.d. “CDC Reports Two Outbreaks of Pan-Resistant Candida Auris.” CIDRAP. Accessed October 6, 2021. https://www.cidrap.umn.edu/news-perspective/2021/07/cdc-reports-two-outbreaks-pan-resistant-candida-auris.

[11] Srinivasan, Arjun. “The Intersection of Antibiotic Resistance (AR), Antibiotic Use (AU), and COVID-19.” Centers for Disease Control and Prevention. February 10, 2021. https://www.hhs.gov/sites/default/files/antibiotic-resistance-antibiotic-use-covid-19-paccarb.pdf.

[12] Vidyarthi, Ashima Jain, Arghya Das, and Rama Chaudhry. 2021. “Antimicrobial Resistance and COVID-19 Syndemic: Impact on Public Health.” Drug Discoveries & Therapeutics 15 (3): 124–29. https://doi.org/10.5582/ddt.2021.01052.

[13] Rawson, Timothy M, Luke S P Moore, Enrique Castro-Sanchez, Esmita Charani, Frances Davies, Giovanni Satta, Matthew J Ellington, and Alison H Holmes. 2020. “COVID-19 and the Potential Long-Term Impact on Antimicrobial Resistance.” Journal of Antimicrobial Chemotherapy 75 (7): 1681–84. https://doi.org/10.1093/jac/dkaa194.

[14] Sun Jin, Louisa and Fisher, Dale. 2021. “MDRO Transmission in Acute Hospitals during the COVID-19 Pandemic.” Wolters Kluwer Health, Inc. (34) 4: 365–371.

[15] Knight, Gwenan M., Rebecca E. Glover, McQuaid C. Finn, Ioana D. Olaru, Gallandat Karin, Quentin J. Leclerc, Naomi M. Fuller, et al. 2021. “Antimicrobial Resistance and COVID-19: Intersections and Implications.” ELife 10. http://dx.doi.org/10.7554/eLife.64139.

[16] Manning, Mary Lou, Edward J. Septimus, Elizabeth S. Dodds Ashley, Sara E. Cosgrove, Mohamad G. Fakih, Steve J. Schweon, Frank E. Myers, and Julia A. Moody. 2018. “Antimicrobial Stewardship and Infection Prevention—Leveraging the Synergy: A Position Paper Update.” American Journal of Infection Control 46 (4): 364–68. https://doi.org/10.1016/j.ajic.2018.01.001.

[17] Hsu, Jeremy. “How Covid-19 is Accelerating the Threat of Antimicrobial Resistance.” BMJ: British Medical Journal (Online) 369, (May 18, 2020). http://dx.doi.org.mutex.gmu.edu/10.1136/bmj.m1983.

[18] Popescu, Saskia. 2019. “The Existential Threat of Antimicrobial Resistance.” Bulletin of the Atomic Scientists 75 (6): 286–89. https://doi.org/10.1080/00963402.2019.1680053.

[19] Toro-Alzate, Luisa, Karlijn Hofstraat, and Daniel H de Vries. 2021. “The Pandemic beyond the Pandemic: A Scoping Review on the Social Relationships between COVID-19 and Antimicrobial Resistance.” International Journal of Environmental Research and Public Health 18 (16): 1–20. https://doi.org/10.3390/ijerph18168766.          

[20] Arshad, Mehreen, Syed Faisal Mahmood, Mishal Khan, and Rumina Hasan. 2020. “COVID-19, Misinformation, and Antimicrobial Resistance.” BMJ 371 (November): m4501. https://doi.org/10.1136/bmj.m4501.

[21] Majumder, Md Anwarul Azim, Sayeeda Rahman, Damian Cohall, Ambadasu Bharatha, Keerti Singh, Mainul Haque, and Marquita Gittens-St Hilaire. 2020. “Antimicrobial Stewardship: Fighting Antimicrobial Resistance and Protecting Global Public Health.” Infection and Drug Resistance 13: 4713–38. http://dx.doi.org/10.2147/IDR.S290835.

Pandora Report 11.18.2016

by spopescu, posted in Pandora Report

Welcome to World Antibiotic Awareness Week! We all have a part in reducing microbial resistance, including companies like McDonalds, KFC, and large chain restaurants. A recent report from Clinical Microbiology is reanalyzing the threat of bioterrorism. The EU has released their action plan for combatting antimicrobial resistance and you can read the roadmap here. Leishmaniasis infections are on the rise in the U.S. due to ecotourism and military campaigns in Iraq and Afghanistan. CRISPR gene-editing was just tested in a person for the first time. The Chinese research group delivered modified cells into a patient with aggressive lung cancer as part of a clinical trial. The cells were modified to disable a gene that codes for protein PD-1 (this normally would restrict immune response and is frequently manipulated by cancer) and the hope is that without the PD-1, the edited cells will be able to overcome the cancer. Did you know that your birth year can help predict how likely you are to get extremely sick from an outbreak of an animal-origin influenza virus? Don’t miss the Next Generation Global Health Security Network Info Session – today at 11a EST!

ISIS Forces Fired Toxic Chemicals in Iraq
Three chemical attacks were launched by ISIS against the Iraqi town of Qayyarah in September and October. The use of chemical weapons was in retaliation after Iraqi government forces retook the town in late August. “ISIS attacks using toxic chemicals show a brutal disregard for human life and the laws of war,” said Lama Fakih, deputy Middle East director. “As ISIS fighters flee, they have been repeatedly attacking and endangering the civilians they left behind, increasing concerns for residents of Mosul and other contested areas.” Victims of the attacks experienced painful symptoms of blister agents, or “vesicants”. The use of chemical weapons is in direct violation of the 1993 Chemical Weapons Convention. The use of these weapons would be classified, under the Rome Statue, as a war crime.

What Will Be the Next Pandemic?
Researchers at the recent International Meeting on Emerging Diseases and Surveillance discussed what the next SARS or Zika-like disease will be. Kevin Olival of EcoHealth used a predictive formula and pointed to flaviviruses that we normally don’t hear about – Usutu, Ilheus, and Louping. “All three have on rare occasions infected people, but they also infect a number of other animal species, which suggests they may have what it takes to jump species. Virologists sometimes call viruses that can do this ‘promiscuous.’ That means ‘it’s more flexible in its ability to infect across hosts, including mammals,’ Olival said.” While the scarcity of human cases proves difficult for gaining funding, emerging diseases tend to hit us by surprise, pointing to the need to expand the scope of surveillance and preparedness.

PCAST Letter to the President to Protect Against Biological Attacks
In a letter to the President, the President’s Council of Advisors on Science and Technology (PCAST) points to the to the unique challenge of bioterrorism threats in that they could be exacerbated by the rapid pace of biological science and technology developments. PCAST emphasizes the need for a renewed effort since Federal leadership can help state and local infrastructure share data and identify patterns during such an event. “Continuing scientific, technical, and regulatory developments allow the medical community to respond to new outbreaks faster than ever before. Developing medical countermeasures to naturally occurring outbreaks today lays the groundwork for responding to potential engineered biological threats in the future. PCAST supports extending this progress into the foreseeable future, setting the ambitious ten-year goal that, for infectious organisms for which effective approaches to creating vaccines exist, the United States should have the ability to accomplish, within a six-month period, the complete development, manufacture, clinical testing, and licensure of a vaccine. ”

Comic Book Explores a World Without Antibiotics  screen-shot-2016-11-15-at-8-40-41-am
A new, dystopian comic book is transporting us to 2036 London. The world is a bleak place where antibiotics have run out. Surgeon X looks at a time where simple infections and hospitalization means certain death, while the government cracks down to maintain selective control over the few drugs that are available via  a”Productivity Contribution Index”, which determines who gets access to medication. Readers follow a surgeon, Rosa, through her work at a secret clinic and the internal dialogue that comes with a repressive government, Hippocratic oath, and constant threat of infectious disease. Sara Kenney, the author of Surgeon X, notes that her own experiences with two premature children frame much of her comments on microbial resistance. Kenney noted that “it was only when she started building for herself what she calls the ‘story world’ that she realized antibiotic resistance is such a threat to medicine that it needed to be in her narrative as the obstacle the protagonist must overcome. ‘I realized the antibiotics crisis we’re facing is probably one of the most extreme obstacles you could throw at a surgeon,’. She found the complexities of the problem—resistance is believed to kill 700,000 people around the world each year—to be staggering.”

WHO Global Action Plan on Antimicrobial Resistance cxt8sslxgaajprd-jpg-large
The WHO has just released their action plan to fight antimicrobial resistance. Countries have committed to having a national action plan by May of 2017 to better support the radical shift that is needed to combat antibiotic resistance. Antimicrobial resistance (AMR) threatens the foundation of modern medicine and public health capacity. There have been little advancements in the world of antibiotics, however we continue to see a growth of AMR. The WHO global action plan has five objectives: to improve awareness and understanding of antimicrobial resistance through effective communication, education and training; to strengthen the knowledge and evidence base through surveillance and research; to reduce the incidence of infection through effective sanitation, hygiene and infection prevention measures; to optimize the use of antimicrobial medicines in human and animal health; and to develop the economic case for sustainable investment that takes account of the needs of all countries and to increase investment in new medicines, diagnostic tools, vaccines and other interventions.

BWC RevCon 
While the 8th Review Conference is underway, there have been some reports from attendants that civil society/NGO’s were asked to leave the room, which goes against precedent for the last two RevCon’s. Some have noted that Iran was seeking to deny NGO’s access to Committee of Whole by using rules of procedure but there has not been consensus yet. While these comments have been coming in from attendants’ Twitter accounts, as of Tuesday afternoon, it appears that the issue has been resolved – as news continues to trickle in, we’ll keep you posted. You can get daily updates on RevCon here, with the most recent one covering the cross-cutting plenaries that are focusing on implementation, article III, solemn declaration and more. These daily reports are the best way to get detailed play-by-play information as to how RevCon is going.

Zika Updates
A recent study found that women are at greater risk for Zika infections due to suppressed vaginal immune response. “Scientists at the Gladstone Institutes discovered that the vaginal immune system is suppressed in response to RNA viruses, such as Zika. The delayed antiviral immune response allows the virus to remain undetected in the vagina, which can increase the risk of fetal infection during pregnancy.” The Brazilian state of Parana has banned aerial spraying of pesticides in urban areas. Florida’s Department of Healthy has their daily Zika updates here, which shows three new locally acquired cases as of 11/16. The CDC has reported 4,255 cases in the U.S. as of November 16, 2016.

Stories You May Have Missed:

  • How NY Hunts for Early Hints of an Outbreak– the New York City Department of Health and Mental Hygiene has a secret weapon in the war against infectious disease outbreaks – a computer program called SaTScan.  This program utilizes big data to help detect and model infectious diseases. It monitors, maps, and detects disease outbreaks throughout the state by utilizing the data that is reported to the health department daily. “It is just not possible to effectively monitor every communicable disease in real time with human eyes alone,” Sharon Greene said. “To be able to quickly and effectively and precisely detect an outbreak, to kick off an outbreak investigation process — the earlier that you can begin this it helps to limit sickness, it helps to limit death, and it makes it more likely that you will successfully solve the outbreak.”
  • Exposure Patterns in 2014 Ebola Transmission – Researchers are presenting new information regarding the largest Ebola outbreak in history by looking at the drivers of transmission and where control efforts could be strengthened. They reviewed data from over 19,000 cases across Guinea, Liberia, and Sierra Leone. “We found a positive correlation (r = 0.35, p < 0.001) between this proportion in a given district for a given month and the within-district transmission intensity, quantified by the estimated reproduction number (R). We also found a negative correlation (r = −0.37, p < 0.001) between R and the district proportion of hospitalised cases admitted within ≤4 days of symptom onset. These two proportions were not correlated, suggesting that reduced funeral attendance and faster hospitalisation independently influenced local transmission intensity. We were able to identify 14% of potential source contacts as cases in the case line-list. Linking cases to the contacts who potentially infected them provided information on the transmission network. This revealed a high degree of heterogeneity in inferred transmissions, with only 20% of cases accounting for at least 73% of new infections, a phenomenon often called super-spreading.” Future Ebola outbreak response will need to consider super spreaders, safe funeral practices, and rapid hospitalization.
  • Rick Bright Selected as New BARDA Director – DHHS recently announced that Dr. Rick Bright will be the new Deputy Assistant Secretary for Preparedness and Response and Director of BARDA. Dr. Bright has been with BARDA since 2010 and served in their Influenza and Emerging Infectious Diseases division.

 

Pandora Report 2.5.2016

by spopescu, posted in Pandora Report

Fear of mosquitoes continues to grow as Zika virus joins the list of burdening arbovirus infections. Perhaps the biggest surprise this week wasn’t that imported Zika cases continue to spring up across the US, but rather that the first sexually transmitted case occurred in Dallas, Texas. I’m starting to think Dallas, TX, could use a break from emerging infectious diseases… As influenza season picks up in the US, Avian influenza outbreaks are popping up in Taiwan, South Africa, and Macao. Good news- it’s safe to go back to your favorite burrito bowl! The CDC declared the Chipotle-associated E. coli outbreak over, however, their co-CEO has voiced frustration over delayed reporting. In the interview, he felt that it gave the “mistaken impression that people were still getting sick” and news was “fueled by the sort of unusual and even unorthodox way the CDC has chosen to announce cases.” Before we venture down the biodefense rabbit hole, don’t forget to stay healthy and safe this Super Bowl Sunday. Spikes in cases and flu-related deaths (in those >65 years of age) can jump by 18%  in the home regions of the two teams. Take care to avoid respiratory viruses and food-borne issues while cheering on your favorite team this weekend!

Medical Counter Measures for Children
Having worked in pediatrics, I was thrilled to see the American Academy of Pediatrics publish the updated guidelines. Throughout my work in infection prevention and collaborations with hospital emergency preparedness and local county health departments, it became increasingly evident that in many ways, this is a patient population that is easily forgotten. There is a woefully apparent gap in preparedness methodology to recognize and modify practices to meet the unique needs of children. While many may laugh at the notion that “children aren’t just little adults”, those who have worked in pediatrics can attest to these common misconceptions. Children are not only more susceptible to the devastation of disasters and CBRN attacks, the medical counter measures often do not account for pediatric dosages. The published report discussed their work over the past five years to better address and fill major gaps in preparedness efforts when it comes to medical counter measures (MCM) for children. “Moreover, until recently, there has been a relative lack of pediatric MCM development and procurement; many MCMs were initially developed for use by the military and have been evaluated and tested only in adults.” Some of the recommendations that were made from this report include: “the SNS and other federal, state, and local caches should contain MCMs appropriate for children in quantities at least in proportion to the number of children in he intended population for protection by the cache” and “federal agencies collaborating with industry, academia, and other BARDA partners, should research, develop, and procure pediatric MCMs for all public health emergency, disaster, and terrorism scenarios and report on progress made.” Perhaps one of the most interesting recommendations was that “the federal government should proactively identify anticipated uses of MCMs in children during a public health emergency and, where pediatric FDA-approved indications do not exist, establish a plan to collect sufficient data to support the issuance of a pre-event EUA that includes information such as safety and dosing information and the federal government should use existing entities with pediatric SMEs, such as the PHEMCE, PedsOB IPT, and the DHHS National Advisory Committee on Children and Disasters, and continue to collaborate with private sector partners offering pediatric expertise to provide advice and consultation on pediatric MCMs and MCM distribution planning.” Overall, these recommendations and the push for data collection and clear progress reporting are definitely a step in the right direction.

GMU Open House
Interested in a master’s degree that allows you to focus on bioweapons, global health security, and WMD’s? Check out GMU’s School of Policy, Government, and International Affairs (SPGIA) Open House on Thursday, February 25th at 6:30pm, at our Arlington Campus in Founders Hall, room 126. Representatives from our Biodefense program will be there to answer all your questions. Better yet, check out our Biodefense Course Sampler on Wednesday, March 2nd, at 7pm (Arlington Campus, Founders Hall, room 502). Dr. Gregory Koblentz,  director of the Biodefense graduate program, will be presenting “Biosecurity as a Wicked Problem”. Come check out our curriculum and get a taste of the amazing topics we get to research!

From Anthrax to Zikam6502e1f
Researchers at the University of Greenwich are finding a potential cancer-fighting strategy using the anthrax toxin. Lead scientist, Dr. Simon Richardson, is working with his team to convert the anthrax toxin into a delivery tool for medications.“This is the first time a disarmed toxin has been used to deliver gene-modulating drugs directly to a specific compartment within the cell. We’ve achieved this without the use of so called helper molecules, such as large positively charged molecules like poly(L-lysine). This is important as while these positively charged molecules, known as polycations, can condense DNA and protect it from attack by enzymes before it reaches the target, they are also known to be toxic, break cell membranes and are sent quickly to the liver to be removed from the body. In this study we demonstrate that using disarmed toxins without a polycation is effective, at a cellular level.” In the world of Zika virus….On Monday, the WHO Zika virus team met and announced that the outbreak should now be considered a public health emergency of international concern. Dr. Margaret Chan, WHO director general, stated, “I am now declaring that the recent cluster of microcephaly and other neurological abnormalities reported in Latin America following a similar cluster in French Polynesia in 2014 constitutes a public health emergency of international concern.” Given the level of uncertainty regarding the disease, many feel this was a justified classification of the outbreak. The first case of sexual transmission within the US also occurred in Dallas, Texas. The patient became sick after having sexual contact with an individual who became symptomatic upon return from Venezuela. Chile and Washington DC have just confirmed their first three cases this week. Mexico’s Health Ministry is trying to downplay the Zika impact on tourism, however as the outbreak unfolds, it will be interesting to see long-term tourism repercussions within the affected countries. The state of Florida is ramping up their mosquito elimination, control, and education efforts to combat the growing epidemic, as it is one of the mosquito-heavy states within the US. Governor Rick Scott recently declared a health emergency in four Florida counties. If you’re on the lookout for educational tools, there are several helpful CDC informational posters regarding mosquito bite prevention.

US Military and the Global Health Security Agenda
In effort to protect military members and support global public health, the DoD (specifically, the Military Health System in coordination with the Defense Health Agency’s Armed Forces Health Surveillance Branch) developed the 2014 Global Health Security Agenda (GHSA). The GHSA established a five-year plan with specific agenda items, targets, and milestones that would incorporate its 31 partner countries. The DoD’s Global Emerging Infections Surveillance and Response System (GEIS) will also support these efforts through their biosurveillance practices in over 70 countries. The international work is as varied as the challenges one might see in global biosurveillance. The Armed Forces Health Surveillance Branch (AFHSB) “leveraged existing febrile and vector-borne infection control efforts in Liberia to support the recent Ebola outbreak response. The Liberian Institute for Biomedical Research served as a central hub for Ebola diagnostic testing with the help of the Naval Medical Research Unit-3 in Cairo, Egypt and two Maryland-based facilities, the Naval Medical Research Center in Silver Spring and the U.S. Army Medical Research Institute of Infectious Diseases in Frederick.” Surveillance efforts will also look at antimicrobial resistance and the development of additional research laboratories to work in coordination with host-nations and certain regional networks. You can also read Cheryl Pellerin’s work on DoD Biosurveillance and the role it plays in maintaining global public health efforts. Pellerin reports on the duties of the GEIS and the US Army Medical Research Institute of Infectious Disease (USAMRIID) in not only global health security, but also protecting US military personnel from infections while abroad.

Norovirus Outbreak in Kansas
There are few things that will make a food-borne disease epidemiologist (or infection preventionist for that matter) as frustrated as a norovirus outbreak. It hits quickly, is highly infectious, and tends to leave you with stories from case-control interviews that will make you either laugh, cry, or need some fresh air. A Kansas City suburb is currently experiencing a 400 person outbreak of gastroenteritis associated with the New Theatre Restaurant. Initial lab reports have confirmed norovirus as the culprit. The Vice President of the restaurant said that three employees have also been confirmed as norovirus cases. To date, the almost 400 people who reported symptoms are said to have eaten at the restaurant between January 15 to present. Norovirus is a pretty unpleasant gastroenteritis (you’ve probably heard it called the “cruise ship bug”) as it has a low infectious dose (estimates put it as low as 18 viral particles, while 5 billion can be shed in each gram of feces during peak shedding). Norovirus outbreaks tend to spring up quickly and infect high volumes of people, making it difficult for public health officials to jump ahead of the outbreak. Perhaps one of the biggest components to stopping the spread of infection is good hand hygiene, environmental cleaning, and staying home when sick.

TB Transmission on Airplanes
We’ve all been there – you’re seated next to someone with a nasty cough or cold and you just know you’re going to get sick. But what happens if you’re on a plane and there’s a person a few rows away that has tuberculosis (TB)? The European Centre for Disease Prevention and Control (ECDC) reviewed evidence of TB transmission on airplanes to update their Risk Assessment Guidelines. Of all the records/studies reviewed, 7/21 showed some evidence for potential in-flight (all flights lasted more than 8 hours) TB transmission, while only one presented evidence for transmission in this environment. The interesting component is that this low transmission risk is considered only for in-flight, as they excluded transmission on the ground since the before and after flight ventilation system is not in full-function mode. The one study that did show transmission risk involved six passengers that were in the same section as the index case, of which, four were seated within two rows. After their review, they found that the risk for TB transmission on airplanes is “very low”. They noted that “the updated ECDC guidelines for TB transmission on aircraft have global implications due to inevitable need for international collaboration in contact tracing and risk assessment.”

Stories You May Have Missed:

  • Resistant HIV – A recent study published in The Lancet discusses drug resistance after virological failure with the first-line HIV medication, tenofovir-containing ART (antiretroviral  therapy). This treatment is used as both a prevention and pre-exposure prophylaxis (PrEP). Researchers found “drug resistance in a high proportion of patients after virological failure on a tenofovir-containing first-line regimen across low-income and middle-income regions”. This study highlights the growing need for surveillance of microbial drug resistance.
  • Active Monitoring of Returning Travelers – Ebola Surveillance – The CDC’s MMWR for the week of January 29, 2016, discussed NYC monitoring of returned travelers from October 2014-April 2015. Monitoring of returned travelers from Ebola-affected countries was one strategy the US employed to prevent imported cases. This report reviews the 2,407 travelers that returned from affected countries, of which no cases were detected. The NYC Department of Health and Mental Hygiene (DOHMH)’s active monitoring system proved successful, however it was very taxing on resources and reinforces the need to minimize duplication and enhanced cooperation. Speaking of Ebola, investigators from the University of Texas Medical Branch at Galveston, Vanderbilt University, the Scripps Research Institutem and Integral Molecular Inc., have performed research to establish that “antibodies in the blood of people who have survived a strain of the Ebola virus can kill various types of Ebola.” Further work will now seek to understand immune response to the virus and how we can modify treatments and potential vaccines to be more effective.
  • DoD BioChem Defense – take a glimpse into the global biosurveillance and defense efforts within the DoD Chemical and Biological Defense Program (CBDP). Working within several joint programs and striving to get ahead of outbreaks and attacks with early warning systems, this program faces the challenges of monitoring biochem threats on an international scale.

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Pandora Report 9.20.14

by juliadhomstad, posted in Pandora Report

We are introducing a new feature for the news round up—“Stories You May Have Missed.” This final section consists of fascinating articles I’ve found throughout the week that couldn’t fit in the report. This week the round up includes the UN Security Council’s resolution about Ebola, ISIS using chemical weapons in Iraq, a surprising source to combat antibiotic resistance, and of course, an Ebola update.

Lastly, you know what time of year it is, flu season is starting…don’t forget to get your flu shot!

Have a great weekend!

With Spread of Ebola Outpacing Response, Security Council Adopts Resolution 2177

On Thursday, the United Nations Security Council met to discuss the Ebola outbreak in West Africa and unanimously adopted resolution 2177 (2014). 2177 established the United Nations Mission for Ebola Emergency Response (UNMEER) and calls on Liberia, Sierra Leone, and Guinea to speed up establishment of national mechanisms to deal with this outbreak and to coordinate efficient utilization of international assistance, including health workers and relief supplies. The resolution also calls on other countries to lift their border and travel restrictions saying that isolation of the affected countries could undermine efforts to respond to the outbreak.

The United Nations—“United Nations Secretary-General Ban Ki-Moon said that the Ebola crisis had evolved into a complex emergency, with significant political, social, economic, humanitarian and security dimensions.  The number of cases was doubling every three weeks, and the suffering and spillover effects in the region and beyond demanded the attention of the entire world.  “Ebola matters to us all,” he said.”

ISIS Uses Chemical Weapons Against Army in Iraq

There were reports this week that the IS terrorist group has used chemical weapons in an attack on the Iraqi army in Saladin province. The reported attack took place Wednesday and Thursday in Dhuluiya, which has been under control of the group for more than two months. The attack affected approximately a dozen people.

One India—“Iraq’s Ambassador to the UN, Mohamed Ali Alhakim said in a letter that remnants of 2,500 chemical rockets filled with the deadly nerve agent sarin were kept along with other chemical warfare agents in a facility 55 km northwest of Baghdad. He added that the site’s surveillance system showed that some equipment had been looted after “armed terrorist groups” penetrated the site June 11.”

Vaginas May be the Answer to the Fight Against Drug-Resistant Bacteria

A naturally occurring bacterium found by scientists from the University of California, San Francisco, School of Pharmacy might be the key to addressing the threat of a post antibiotic future. Found in the female vagina, Lactobacillus gasseri is the basis for Lactocilin, a possible antibiotic alternative. This discovery comes at a time where the WHO has declared antimicrobial resistance as “an increasingly serious threat to global public health.”

Medical Daily—“This isn’t the only implication for the L. gasseri bacteria. Researchers are also hopeful to find similar-acting bacteria in different parts of the human body. “We think they still have bacteria producing the same drug, but it’s just a different bacterial species that lives in the mouth and has not yet been isolated,” lead researcher Micheal Fischbach told HuffPost. Even though the bacteria were harvested in females, researchers are confident it will have equal results when used in men.”

This Week in Ebola

It was a terrible week for Ebola, absolutely terrible. Above, we already learned that the UN Security Council declared the virus a threat to international peace and security, but that wasn’t all that happened. President Obama pledged 3,000 troops to fight Ebola in West Africa. The WHO said that the number of Ebola cases could begin doubling every three weeks and expressed concern about the black market trade of Ebola survivors’ blood. Eight aid workers and journalists were murdered in Guinea leaving many to fear that violence could stymy relief efforts and in Sierra Leone, the government instituted a three-day lockdown in order to help health care workers find and isolate patients.

Stories You May Have Missed

 

Image Credit: Wikimedia

Pandora Report 7.26.14

by juliadhomstad, posted in Pandora Report

Highlights this week include, Dr. Frieden goes to Washington, top Ebola doc comes down with the virus, a TB patient on the loose in California, and a plague based shut-down in China. Have a great weekend!

CDC Director to Tackle MERS, Measles, Global Health Threats

It was my absolute pleasure to be able to attend a talk given by Dr. Tom Frieden, Director of the Centers for Disease Control and Prevention, at the National Press Club on Tuesday.  Though Dr. Frieden briefly covered the stated topics, he spoke primarily about the dangers of growning antibiotic resistance and hospital acquired infections. He urged everyone, including the CDC, to work hard(er) to combat these issues that may usher us into a “post-antibiotic era.” The entire speech is available here. (You may even notice me in the lower left corner chowing down on a CDC cupcake!)

USA Today—“‘Anti-microbial resistance has the potential to harm or kill anyone in the country, undermine modern medicine, to devastate our economy and to make our health care system less stable,” Frieden said.

To combat the spread of resistant bacteria, Frieden said the CDC plans to isolate their existence in hospitals and shrink the numbers through tracking and stricter prevention methods.”

 

Sierra Leone’s Top Ebola Doctor Infected as the Worst Outbreak in History Continues

You may have seen this story pop up earlier this week in our facebook or twitter, but it certainly bears repeating. Dr. Sheik Umar Khan, who has been credited with treating more than 100 Ebola victims, has come down with the virus too. He is now one of hundreds who have been affected by the virus in West Africa, which has killed over 600.

The Washington Post-“In late June, Khan seemed keenly aware of the risk he faced. “I am afraid for my life, I must say, because I cherish my life,” he told Reuters. “Health workers are prone to the disease because we are the first port of call for somebody who is sickened by disease. Even with the full protective clothing you put on, you are at risk.’”

 

California Police Seek Man Who Refused Tuberculosis Treatment

Prosecutors in Northern California have obtained an arrest warrant for Eduardo Rosas Cruz, a 25 year old transient, who was diagnosed with TB and disappeared before he started treatment. Rosas Cruz needed to complete a nine-month course of treatment. Tuberculosis spreads through the air when an infected person coughs or sneezes. It is not known if Rosas Cruz is currently contagious. By law, health officials cannot force a patient to be treated but courts can be used to isolate an infectious individual from the public at large.

FOX News—“County health officials asked prosecutors to seek the warrant, in part, because Rosas Cruz comes from a part of Mexico known for its drug-resistant strain of tuberculosis. County health officials are searching for Rosas Cruz, and his name is in a statewide law enforcement system, San Joaquin County Deputy District Attorney Stephen Taylor said.”

 

In China, A Single Plague Death Means an Entire City Quarantined

Parts of Yumen City, in Gansu Province, were quarantined after a farmer died from bubonic plague. The man developed the disease after coming in contact with a dead marmot on a plain where his animals were grazing. According to experts, Chinese authorities categorize plague as a Class 1 disease, which enables them to label certain zones as “infection areas” and seal them off. 151 people were affected by the quarantine, which was lifted after none developed symptoms.

The Guardian—“The World Health Organization’s China office praised the Chinese government’s handling of the case. “The Chinese authorities notified WHO of the case of plague in Gansu province, as per their requirements under the International Health Regulations,” it said in a statement to the Guardian. “The national health authorities have advised us that they have determined this to be an isolated case, though they are continuing to monitor the patient’s close contacts.’”

 

Image Credit: RT