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A member asked:
What viruses live longest on surfaces like door knobs?
A doctor has provided 1 answer
Virology: There is a whole field of medicine devoted just to the study of viruses - so it starts to get very complex when you look into it. It is true that some infections can persist on surfaces such as door knobs - we call these 'fomites' -contaminated objects. Probably norovirus is the most notorious. It can survive for WEEKS on hard surfaces! Definitely good to maintain good hand hygiene at all times.
Answered 9/17/2017
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