From the CDC: This scanning electron micrograph depicts a number of Gram-negative Campylobacter jejuni bacteria, magnified 9,951x.
Campylobacter is one of the most common bacterial causes of diarrheal illness in the United States. Virtually all cases occur as isolated, sporadic events, not as a part of large outbreaks with about 15 cases diagnosed each year for each 100,000 persons.
Image Credit: Janice Carr