Biology 1290B Chapter Notes - Chapter 11: Typhoid Fever, Cholera Toxin, Oral Rehydration Therapy
19 Jul 2017
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Chapter 11. 5 - gi infe(cid:272)tions can be caused (cid:271)y several ba(cid:272)terial pathogens. Inflammatory gastroenteritis diarrhea/vo(cid:373)iti(cid:374)g that usuall(cid:455) i(cid:374)volves fever (cid:271)ut there"s no fever (usually caused by cholera) Invasive gastroenteritis there might be blood or mucus in the feces, diarrhea, and fever. Oral rehydration therapy it"s a (cid:373)i(cid:454)ture of glu(cid:272)ose a(cid:374)d ele(cid:272)trol(cid:455)tes to restore the balances in the body (it was used for those who had intestinal cholera from the case!) Etec (enterotoxigenic e. coli) - there are two toxins that the intestinal epithelial cells release and they cause gastroenteritis (inflammation of the intestines and stomach) -> usually the cause of traveler"s diarrhea. One toxin is heat labile (easily breakable) which is similar to cholera toxin. The other toxin is heat stable: symptoms can be reduced by careful hygiene. Vibriosis: curved, gram-negative, halophilic rod, found in seafood because it"s naturally found in warm marine waters, causes cellulitis -> necrotic skin lesions. Several bacterial species can cause an invasive gastroenteritis.
