A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY A. DOWSETT, PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
Transmission electron micrograph of the Gram- positive anaerobic bacteria Clostridium botulinum, responsible for serious food poisoning in humans. C. botulinum grows in badly preserved canned foods, notably meat & fish, & produces the potent exotoxin that causes botulism poisoning. The toxin affects the central nervous system of humans; in fatal cases death results from heart & lung failure due to malfunctions in the cardiac & respiratory centres of the brain. Magnification: x84,000 at 8x10 inch size.
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