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Q: What is the infectious agent (pathogen) that causes Hepatitis A? For example, the name of the bacteria, virus, or parasite.
A: Hepatitis A (formerly known as infectious hepatitis) is an acute infectious disease of the liver caused by the hepatitis A virus (Hep A), an RNA virus, [ usually spread the fecal-oral route; transmitted person-to-person by ingestion of contaminated food or water or through direct contact with an infectious person. The Hepatitis virus (HAV) is a Picornavirus; it is non-enveloped and contains a
single-stranded RNA packaged in a protein shell. There is only one serotype of the virus, but multiple genotypes exist. Codon use within the genome is biased and unusually distinct from its host. It also has a poor internal ribosome entry site In the region that codes for the HAV capsid there are highly conserved clusters of rare codons that restrict antigenic variability. ]
Expert answered|jher000|Points 5439|
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Asked 10/2/2011 10:27:40 PM
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