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Doctor insights on: How Long Is Someone Contagious With Mono

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Dr. Michael Ein
760 doctors shared insights

Mono (Definition)

Infectious mononucleosis, also known as mono, is a contagious illness caused by the Epstein-Barr virus. Symptoms include fever, fatigue, sore throat, enlarged lymph nodes, and enlarged spleen. It is spread via saliva, hence its ...Read more


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How long is mono contagious?

How long is mono contagious?

Until better: Most viral infections, including mono, are infectious most at the outset, even before you fall ill. Once you are feeling better, you are usually no longer infectious. ...Read more

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How long is a person contagious with mono?

How long is a person contagious with mono?

HOW LONG MONO IS CON: How long a person is contagious there is no answer to that, as we dont know how long.Once you have mononucleosis the virus stays in your body and there is no way to know when you are and you are not contagious. ...Read more

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I'm wondering how long is mono contagious for?

I'm wondering how long is mono contagious for?

Variable: Most are contagious for 2-3 weeks, a few up to 3 months. Rarely a person can shed the germ in saliva off and on for years. Segregation during the active phase is often considered adequate.(2-3 wks). ...Read more

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How long after someone has EBV are they contagious through kissing? How about for people with "chronic mono" (regardless of how real that is)?

How long after someone has EBV are they contagious through kissing?  How about for people with "chronic mono" (regardless of how real that is)?

Epstein Barr virus: EBV probably is transmissible by saliva for only a few weeks after recovering from mononucleosis. "Chronic mono" is usually not actually mononucleosis and not caused by EBV (as your "regardless" comments suggests you already know), and therefore is not transmissible. ...Read more

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Is mono contagious?

Is mono contagious?

Yes: Mono -also known as the kissing disease - is contagious. It's spread through spit (liking sharing eating utensils and ... Kissing). ...Read more

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Contagious (Definition)

One is able to transmit an infection to another by ...Read more