Transmission of hepatitis A virus occurs -(
Correct Answer: 2 weeks before onset of symptoms
Description: Ans. is 'b' i.e., 2 weeks before onset of symptoms . The risk of transmission of HAV is greatest from 2 weeks before to I week after the onset of jaundice. . Infectivity falls rapidly with onset of jaundice. . HAV is excreted in feces for about 2 weeks before the onset of jaundice and for up to one week there after. . Infective material is mainly man's feces. . Blood and serum are infective during the brief period of viremia.
Category:
Microbiology
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