BIO 375 Lecture Notes - Lecture 7: Henipavirus, Caliciviridae, Norovirus

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19 Feb 2018
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This is really anything that causes a gut infection. Lots of things cause it, viral, bacterial and protozoan etiologies. Family caliciviridae (used to be known as norwalk-like virus) Onset: often begins suddenly within 1 to 2 days after exposure, but can occur w/in 12 hours and lasts 1 to 2 days. Symptoms: abdominal cramps, nausea, projectile vomiting and diarrhea some may experience low-grade fever, chills, headache & muscle aches. Noroviruses are highly contagious (both diarrhea and vomit contain the virus) Infective dose may be as few as 10 viral particles. To date, no antiviral treatment or vaccine. There is evidence that suggests that immunity may be strain specific and lasts for only a few months. Individuals are likely to be repeatedly infected throughout their lifetimes. Recent evidence also suggests that susceptibility may be genetically determined with people of (cid:862)t(cid:455)pe-0(cid:863) (cid:271)lood t(cid:455)pe e(cid:454)perie(cid:374)(cid:272)i(cid:374)g (cid:373)ore se(cid:448)ere i(cid:374)fe(cid:272)tio(cid:374)s. Fecal/oral route involving food, water, person-to-person, and surfaces (fomites)

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