Posted: 12/19/2003 6:27:20 AM EDT
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When is someone who has been infected contagious? i.e. at what point after you've been infected are they able to spread it to others, and at what point in the recovery process are you no longer able to spread it? |
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How long is a person with flu virus contagious? The period when an infected person is contagious depends on the age of the person. Adults may be contagious from one day prior to becoming sick and for three to seven days after they first develop symptoms. Some children may be contagious for longer than a week. [url]http://www.cdc.gov/flu/about/qa/disease.htm[/url] |