How long is RSV contagious? Same for Croup?!


Question:

How long is RSV contagious? Same for Croup?


Answers:

RSV is most contagious in the early part of infection - the first 2-4 days - and for up to 3 weeks or longer, in some cases, after the onset of infection.

Most, but not all, croup is viral and self-limited. Transmission doesn't always mean croup but can instead be a cold. Contagion lasts about a week.


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