BIOL 2P98 Lecture Notes - Lecture 23: Cryptosporidium Parvum, Campylobacter Jejuni, Cyclospora Cayetanensis
9 Aug 2015
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Document Summary
Lecture 23- other water- and food-borne diseases, food spoilage and food preservation. The source of most outbreaks have come from water or air conditioning systems in large public buildings. droplets of heavily contaminated water inhaled: legionella pneumophila-gram- bacteria. It requires complex nutritional requirements such as high cysteine levels and low sodium levels to grow. Campylobacter: campylobacter jejuni is slender, curved & rod-shaped, microaerophilic organism sensitive to environmental stresses (e. g. , 21% oxygen, drying, heating, disinfectants, acidic conditions), c. jejuni is the leading cause of bacterial diarrheal illness in the united states. It causes more disease than shigella and salmonella combined. Common symptoms: the most common symptoms of campylobacter infection are, diarrhoea, stomach cramps, fever, nausea and vomiting. Cryptosporidium: cryptosporidium is a protozoan, a single-celled parasite that lives in the intestines of animals and people, the dormant (inactive) form of cryptosporidium, called an oocyst, is excreted in the feces (stool) of infected humans and animals.
