HSS 1100 Study Guide - Midterm Guide: Listeria Monocytogenes, Enterotoxigenic Escherichia Coli, Tuberculous Meningitis

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 1100
• Professor: Franco Pagotto

Document Summary

Gram positive bacilli can be spore forming, or non-spore forming. Caused by anthrax, with unique protein capsules that are anti-phagocytic. When their spores enter food, humans can get food poisoning. The bacteria have double stranded dna plasmids, pxo1 and pxo2, which help the bacilli evade the immune system and encodes the anthrax toxin. Bacillus anthrax needs aerobic conditions to grow, its spores are very stable and resistant, it is contracted from contaminated animals or soil. Optimal conditions are at 37c (human body temp. ) and it contains 3 proteins: edema factor, protective antigen, and lethal factor, creating a very deadly mix. Bacillus cereus motile, non-encapsulated, and resistant to penicillin. Clostridium botulism, tetanus, gas gangrene and pseudomembranous colitis. Fatal food poisoning, from a lethal neurotoxin blocking the release of ach, inhibiting muscle contraction in the autonomic nervous system resulting in muscle paralysis, bilateral cranial palsies, respiratory paralysis.