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A member asked:

How long does someone have mono before they run a fever and at what point are they contagious?

A doctor has provided 1 answer
Dr. Oscar Novick answered

Specializes in Pediatrics

Mono: You can have mono without a fever.One is possible contagious about 1week before the onset of the sore throat.

Dr Niazi agreed

Answered 9/4/2017

4.7k views

Thank

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How do i know if i am contagious? i do not have a fever. I do have a persistent sinus yuck behind my left eye, even after taking Claritin. Alka-seltzer Plus gives temporary relief from constant clear running sinus. No thick clear, yellow or green fluid

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I came down with a fever and headache about 1 week after kissing someone who has mono. I have been experiencing symptoms for 3 days now. Is that me contractimg mono or something else? I know the incubation period is longer, but is it possible for me to ha

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