TGIF and welcome to your favorite weekly dose of all things biodefense! Check out this film from PBS Digital Studios Brain Craft exploring the technical and ethical questions about CRISPR and genetic engineering.
The Growing Threat of Pandemics: Enhancing Domestic and International Biosecurity
The Bush School of Government and Public Service at Texas A&M University just released their new white paper on biosecurity measures. The paper highlights the increased threat of pandemics due to globalization and ease of transportation. In their review they found nine priority areas that will help address the current biodefense problem. Their priority areas/action items are leadership, international response, the anti-vaccine movement, animal and human health, uniform health screening, public health and healthcare infrastructure, effective outbreak response, cultural competency, and academic collaborations. The white paper notes that “there should be uniform health screenings for individuals seeking permanent or extended temporary residence in the United States. Currently, there are discrepancies between the vaccination requirements for immigrants and the vaccination requirements for refugees.” The inclusion of the anti-vaccination movement was particularly interesting as few reports truly capture this in regards to biodefense efforts. “The increasing influence of the anti-vaccine movement in the United States is another growing threat. Leaders of the movement spread misinformation to parents with questions or anxiety over the safety of vaccines. Many within the anti-vaccine movement incorrectly believe that vaccines cause autism and the number of individuals seeking nonmedical exemptions to the vaccination requirements of schools is on the rise.”
Pandemic Summer Workshop Sneak Peek
We’re getting closer to the July 17-19 workshop on pandemics, bioterrorism, and global health security, which means that starting next week, we’ll be highlighting some of the amazing faculty teaching the courses. Make sure to look for our spotlight on Dr. Andy Kilianski in next week’s Pandora Report as we’ll be looking at his work on biosurveillance and its role within U.S. biodefense efforts! Make sure to take advantage of the early registration discount before June 1st!
2017 Infectious Disease Mapping Challenge
Don’t miss this wonderful chance to show off your infectious disease mapping skills! The Next Generation Global Health Security Network and DigitalGlobe Foundation are “seeking undergraduate and graduate students, in a team or individually, to generate up to three maps (one map is perfectly acceptable) that illustrate a research question related to any of the categories detailed below. Maps can be analytic (examining relationships between multiple domains, phenomena, or data sources) or descriptive (depicting a single phenomenon or data source). While analytic projects are ideal, descriptive projects will be accepted as long as students/teams describe why their map depicts a notable phenomenon. Similarly, while international maps are preferred, domestic maps will be accepted if the student/team can provide justification as to why a map focusing on the U.S. is necessary (e.g., U.S. data sets on a given topic are the most comprehensive).”
Scientists Take On HIV By Using CRISPR
Researchers have just made headway in the battle against HIV/AIDS by using the genome editing technology, CRISPR-Cas9. Current treatment for HIV involves anti-retrovirals, which are pretty harsh on the body and come with several nasty side effects. In their fight against HIV, the research team used the CRISPR technology like a pair of scissors to get rid of the HIV-1 DNA in the body of mice. “If you cut out the DNA, you stop the virus from being able to make copies of itself. The team is the first to show HIV can be completely annihilated from the body using CRISPR. And with impressive effect. After just one treatment, scientists were able to show the technique had successfully removed all traces of the infection within mouse organs and tissue.”
Public Interest Report – Chemical Weapons
Don’t miss the latest publication from the Federation of American Scientists, which includes several articles on chemical weapons. The Public Interest Report (PIR) is a great source for articles on human rights, counterterrorism, and more. The most recent edition includes articles on the threat of toxic chemicals, investigations regarding the chemical attacks in Syria, the value of scientific analysis of chemical weapons attacks, and more. The president of the Federation of American Scientists, Charles D. Ferguson, also wrote a special message regarding the value of scientific analysis, specifically in regards to chemical weapons attacks. He highlights several articles regarding chemical weapons attacks over the years, one of which includes an analysis of symptoms and potential agents used. This specific work includes analysis from GMU professor, Keith Ward, and highlights the use of chemical weapons in Darfur and Sudan and the limitations of NGO documentation of chemical warfare agents. The article points to the specific symptoms following chemical weapons attacks and notes that “NGOs find themselves at considerable disadvantage compared to national governments when faced with evaluating evidence of alleged attacks using chemical weapons.”
Could Saving Animals Prevent the Next Pandemic?
70% of emerging infectious diseases are zoonotic, meaning that some type of a spillover event had to occur. Ebola, HIV/AIDS, H1N1, and avian influenza are all examples of spillover that has resulted in human morbidity and mortality. The USAID PREDICT program is working to combat this growing threat of zoonotic diseases. PREDICT works to establish a global surveillance system for infectious diseases that can spillover into humans. PREDICT is a collaborative effort between the University of California at Davis’s One Health Institute and the School of Veterinary Medicine, as well as the Wildlife Conservation Society, Metabiota, EcoHealth Alliance, and the Smithsonian Institute’s Global Health Program. “In its first five years, PREDICT trained 2,500 government and medical personnel in 20 countries on things like the identification of zoonotic diseases and implementing effective reporting systems. They collected samples from 56,340 wild animals, using innovative techniques like leaving chew ropes for monkeys then collecting saliva afterwards. They also detected 815 novel viruses—more than all the viruses previously recognized in mammals by the International Committee on Taxonomy of Viruses.” One of the tools PREDICT uses for surveillance is to monitor animal health and diseases that are circulating in them. “When you disrupt an ecosystem by removing a species through culling, you have a less healthy ecosystem and higher risk of disease,” says Megan Vodzak, a research specialist for Smithsonian’s Global Health Program. “Sometimes you increase the level of the virus within the population because you eliminate some but not all of the animals, and they’re still circulating it.” This brings about a humbling notion – conservation and human health might go hand in hand. Some researchers note that by protecting wildlife, we can help prevent spillover events and outbreaks. This concept however, is a bit more complex and has many on the fence regarding the actual role of conservation in human diseases. Some work has found that increases in biodiversity have no impact on human health, emphasizing the murky water of those trying to sell conservation as a tool for fighting pandemics. “When researchers do embark on conservation projects, she cautions that they should also consider other possible outcomes besides the protective benefit humans get from healthy wildlife and ecosystems. ‘We have to recognize that conservation could provide benefits for public health and it could endanger public health,’.”
The Battle of the Resistant Bug
We often think of an infectious disease threat emerging from some hidden jungle or quiet spillover event. While these are are true scenarios, I offer one more – the moment a bacteria becomes resistant to antimicrobials. Whether it be related to over-use in farming or over prescribing in healthcare, this is often a forgotten battleground. We’ve become accustomed to the ease and availability of antibiotics, which has translated to increased and improper use. Antibiotic resistant has frequently been overshadowed by the flashier of infectious disease threats however, this is to our detriment. Antimicrobial resistance (AMR) has proven time and time again to not only be a devious adversary, but one that gets little attention. Research and development into new antibiotics has lagged in recent years, which has only compounded the issue. One of the issues is also the lack of coordinated international surveillance and response strategies. Interestingly, Russian scientists recently developed an interactive world map, which shows human gut microbiota and their potential for resistance. The ResistoMap (pretty outstanding name, right?) makes it easier to track national resistance trends and potentially create an international response plan. “Using the ResistoMap, it is possible to estimate the global variation of the resistance to different groups of antibiotics and explore the associations between specific drugs and clinical factors or other metadata. For instance, the Danish gut metagenomes tend to demonstrate the lowest resistome among the European groups, whereas the French samples have the highest levels, particularly of the fluoroquinolones, a group of broad-spectrum anti-bacterial drugs.” While the rise of an emerging infectious disease should not be ignored, it is important that we remember the slower burn of antimicrobial resistance. Even Alexander Fleming saw the future involving a world without effective antibiotics, as he noted just following his acceptance of the 1945 Nobel Prize, “The thoughtless person playing with penicillin treatment is morally responsible for the death of the man who succumbs to infection with the penicillin-resistant organism.”
Regional Action Needed to Prevent Syrian Chemical Weapons Attacks
GMU biodefense PhD alum, Daniel M. Gerstein, is focusing on the role regional actors could play with respect to Syria, especially in terms of dissuading the use of chemical weapons. Despite the horrific attack in early April, global response has been surprisingly tepid and Russian support is ongoing, but Gerstein also highlights the “deafening silence” on the issue by countries within the region. Pressure could be applied from surrounding countries to indicate a strong message that the use of such weapons will not be tolerated. “Borders with Syria could be sealed to prevent any of the remaining stocks from leaving the country. This would likely require a mix of military, law enforcement and border police to ensure that any illicit crossings are immediately halted. In the event that chemical weapons do breach the Syrian border, response forces should be prepared to stop suspect shipments, conduct searches of cargo and have appropriate protection to avoid becoming casualties themselves.” Gerstein also notes that regional leaders could direct efforts towards Assad specifically, making it clear that Syria’s future will not include him, by calling for the International Criminal Court to indict him for war crimes.”Over the past 15 years, the norms against the use of chemical weapons have continued to be threatened, with increasing state and non-state actor use. Most of these attacks have occurred in the Middle East. This trend cannot be allowed to continue.”
The Chemical Attack in Syria – Sorting Truth from Propaganda
Rod Barton takes us through the April chemical weapons attack in Syria and argues against those who claim it was a “false flag” operation, staged by rebels to draw the U.S. into further intervention efforts. The most notable proponents of this argument have been former MIT professor Theodore Postol and Sydney University professor, Tim Anderson. In efforts to help break the cycle of a false narrative, the U.S. has released intelligence reports however, those who support the “false flag” narrative continue to point to misinformation and confusion about the April 4th attack as evidence. Barton argues against the “false flag” narrative by highlighting several points as evidence for the attack – victims seeking medical care following a Syrian air strike with classic symptoms of nerve agent poisoning, analysis samples that confirmed sarin, and the air raid crater found in the road north of the town, which tested positive for sarin and hexamine. Postol, on the other hand, while continuing to claim that the U.S. intelligence reports fail to prove definitively that the attack was done by the Assad regime, does not argue that it was sarin that killed the people in Khan Sheikhoun. “His case is largely based on the nature of distortion of the metal fragment in the crater – he claims this proves that it was not dropped from an aircraft, as stated by US intelligence. His theory is that a sarin-filled tube, possibly a 122mm artillery rocket body, was placed on the road by individuals on the ground and overlaid with a small explosive charge to disperse the agent.” Barton argues against Postol’s comments for several reasons – Postol fails to explain the origin of the sarin in the tubes, how the rebel groups managed to coordinate the detonation of their device with that of a Syrian government air raid, and that Postol fails to account for the evidence of a second chemical round that detonated around 300m from the road crater. Barton notes that “Postol was an eminent scientist and his views cannot simply be ignored. However, on this occasion the evidence to support his argument is not there – he has got it wrong. His writings on this subject have nevertheless been useful in that they have forced analysts to question the evidence closely to determine their degree of certainty in their assessments. But while the particulars are difficult to ascertain, there is still sufficient evidence to state beyond reasonable doubt that the Syrian military is responsible for the attack. In other words, the jury should convict – sadly, in today’s world, the reality may be different.”
Stories You May Have Missed:
- 3-D Structures vs. Infectious Diseases– Northwestern University Feinberg School of Medicine is leading a team of international researchers to determine the 3-D atomic structure of more than 1,000 proteins to help develop treatments and vaccines against infectious diseases. “Almost 50 percent of the structures that we have deposited in the Protein Data Bank are proteins that were requested by scientific investigators from around the world,” said Wayne Anderson, PhD, professor of Biochemistry and Molecular Genetics at Feinberg, and director of the project. “The NIH has also requested us to work on proteins for potential drug targets or vaccine candidates for many diseases, such as the Ebola virus, the Zika virus and antibiotic-resistant bacteria. We have determined several key structures from these priority organisms and published the results in high-impact journals such as Nature and Cell.”
- The Million Dollar Minnesota Measles Outbreak – the growing measles outbreak in Minnesota is projected to cost the state $1 million and is quickly growing. “When it began last month, public health officials knew this outbreak could be large and ongoing, because many Somali-Americans have been refusing the measles, mumps, and rubella (MMR) vaccine for years over unfounded rumors that the childhood immunization, whose first dose is routinely given to babies at 12 to 15 months, causes autism.” Sadly, the vaccination declinations in the Somali-Americans in Minnesota are considered to have been a result of targeting from anti-vaccine groups.