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From: Fiscally Conservative	5/2/2009 8:35:51 PM
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If someone has the flu or a cold and coughs into his hand, and then he touches a doorknob, how long can those germs live on that doorknob or most surfaces ? The length of time that cold or flu germs can survive outside the body on an environmental surface, such as a doorknob, varies greatly. It depends on the virus. HIV usually dies fairly quickly outside of the body, 1-2 hours, whereas Hepatitis B can live on a dry surface for weeks. The suspected range is from a few seconds to 48 hours - depending on the specific virus and the type of surface. Flu viruses tend to live longer on surfaces than cold viruses do. Also, it's generally believed that cold and flu viruses live longer on nonporous surfaces - such as plastic, metal or wood - than they do on porous surfaces - such as fabrics, skin or paper. Although cold and flu viruses primarily spread from person-to-person contact, you can also become infected from contact with contaminated surfaces. The best way to avoid becoming infected with a cold or flu is to wash your hands frequently with soap and water or with an alcohol-based sanitizer. Sources: revolutionhealth.com ukcoalition.org cdc.gov

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