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A member asked:

How many days before the symptoms of conjunctivitis start are you infectious and spreading the virus?

A doctor has provided 1 answer

Depends: Different viruses can cause conjunctivitis and they will begin shedding at different times before symptoms start. In general, someone who develops viral conjunctivitis probably started shedding virus (and could spread it to someone else) 24-48 hours before their own symptoms started.

Dr Raff and 2 doctors agreed

Answered 11/24/2016

5.9k views

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Related Questions

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Do i need to take my son to the dr for his eye conjunctivitis that he got from a stomach virus?

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What medication do I treat conjunctivitis with? I do not know the cause (allergy/virus, etc). Seeing a doctor is not an option.

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After or during a cold, without Conjunctivitis. My eyes are immune to the same serotype of the virus too or only the respiratory system?

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Saw doc yesterday about sore throat and canker, said virus.Last night one eye irritation, conjunctiva red, watering all night-eyelashes little stuck together.Conjunctivitis?How to treat or see reg doc?

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How many cases of infectious conjunctivitis a year in the US ?

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