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January 11th, 2021 

SARS2 lasts longer in cold and dry air. This is an expected result and has been true for most respiratory viral particles. The lower the ambient temperature and lower the ambient humidity the more likely SARS2 will be able to survive and infect.

The only real benefit to knowing this piece of data is that during the winter months viral transmission off of a surface is more likely only if you touch your face and do a poor job of washing your hands.

Dr. M

Sharma Biochem Biophys Res Commun