CDCA OSCE Practice Exam 2025 – Complete Exam Prep Resource

Question: 1 / 585

How long is Hepatitis A infective after exposure?

1 week

Hepatitis A is a viral infection of the liver that can be transmitted through the fecal-oral route, particularly through the consumption of contaminated food or water. The infectivity period for someone who has been exposed to the virus starts approximately two weeks before symptoms become noticeable and can continue for about one week after the onset of jaundice or symptoms. Therefore, if someone has been exposed to the virus, they can still transmit it for about one week after the exposure but are not considered infectious beyond that timeframe.

This timeline is crucial for understanding public health implications, especially regarding vaccination and post-exposure prophylaxis, which can significantly reduce the risk of transmission if administered within two weeks of exposure. The other options reflect time frames that either exceed the typical duration of infectivity or are not supported by the infectious disease dynamics of Hepatitis A.

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2 weeks

1 month

Indefinitely

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