What are the chances of catching EBV, the virus that leads to mono after one quick kiss? I read up that not everyone who is exposed to it gets mono. But I just wanna know if the odds are low or high. I also read that if I were to have an EBV infection as a kid I would be "immune" to mono, though I can't recall if I was infected when i was young. Just wondering if this is a risk, a quick kiss no longer than 2 seconds.