FST 10 Lecture Notes - Lecture 15: Trichinella Spiralis, Scrapie, Types Of Cheese
18 Sep 2017
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Class: fst 010 topic: food borne illnesses and intoxications. Notes: us food supply considered one of the safest in the world. In 1999 estimated 76 million food borne illnesses occur every year, Under best conditions a cell can divide every 20-30 minutes. Microbial food poisonings: two major types of food-borne illnesses, intoxications, infections, food-borne intoxication (food poisoning)- relatively acute illness associated w/ the consumption of pre-formed microbial toxins in food. Organism must grow in the food, but need not grow in you. Clostridium botulinum isn"t so common but deadly; anaerobic, spores. Bacillus cereus is an emerging pathogen; not deadly; spores (cooked rice: botulism- intoxication from clostridium botulinum. Fatalities are around 20% if diagnosed in time otherwise deadly. Symptoms include nausea and vomiting (12-24 hours), weakness/lassitude/ double vision , death in 2-9 days from respiratory paralysis. Food-borne infections (bacteria: food is the vector that carries usually high levels of the pathogen to the body.
