How Is Mono Spread?
My sister has mononucleosis. I drank out of her drink before we found out that she had it. Does this mean that I have mono now? – Kyle* Mono, or mononucleosis, is spread through direct contact with saliva. This includes sharing eating utensils, drinks, and even things like lip gloss, lipstick, or lip balm. Because it takes about 4 to 7 weeks for symptoms to appear, a person who’s infected can spread the virus without even knowing it. Though no one really knows exactly how long it takes after infection with the virus for someone to become contagious, it’s pretty safe to say that a person is most contagious from right before symptoms start until they go away. If you’ve shared drinks with or kissed someone who has mono, there’s no way to tell whether you will get it — unless you know you’ve had mono before. People who have already been infected with the virus that causes mono — Epstein-Barr virus or EBV — probably won’t get reinfected because they develop immunity. (Although it is possibl