DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY DENNIS KUNKEL MICROSCOPY / SCIENCE PHOTO LIBRARY
Scanning electron micrograph (SEM) of Campylobacter jejuni is an enteric, curved-rod prokaryote (bacterium). It is the bacterium that causes campylobacteriosis, one of the most common bacterial causes of diarrheal illness in the United States. It is a relatively fragile bacterium that is easily killed by cold or hot temperatures. Birds are carriers due to their body temperature being just right to host the bacteria. Improper handling of raw poultry or undercooked fowl is usually the source of infection in humans. Magnification: x3,000 when shortest axis printed at 25 millimetres.
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