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How long is a cold contagious?

Related Topics: Coldness

Answers From Experts & Organizations (1)

Primary Care
6,467 Answers
73,185 Helpful Votes
As a rule, colds are contagious a day before you know you are sick, and for about two days after. At one week, if you are feeling progressively better, and unless you have a secondary infection, your cold should not be contagious.

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