HSS 1100 Lecture Notes - Lecture 6: Salmonella Enterica Subsp. Enterica, Enterobacter, Gas Gangrene

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

Document Summary

Protein capsule (pxo2) helps it to be antiphagocytic. Clostridium (for every pathogen, just know 2-3 things to differentiate) Two exotoxins: one produces diaherrea, causes pseudomembranous colitis. Tetanus muscle paralysis, can cause heart stopping. From improperly canned food, aboriginal storing practices - can be pockets without o2 > allow exotoxins to be created -> can result in bilaterial cranial nerve palsies. Infant botulism (floppy ) spores can attach, constipation. Psychropath (likes the cold), likes oxygen, can be treated with antibiotics, crosses 3 barriers blood-brain, feto-placental, gi tract, high infection rate ~30% Releases exotoxins which destroy heart & nervous system. Salmonella - second causes enteric fever, gets in lymph nodes -> salmonella typhi and paratyphi: coli. When slaughter cow -> bacteria get into our digestive system. Low birthweight babies are the most at risk. Emb (eosine-methylene-blue) and macconkey agars (don"t need to memorize the ingredients) Ferment lactose -> lower ph -> look pink.