Visas for Americans to Korea. American Citizens with valid U.S. passports may enter Korea for a period of 90 days without a visa (arrival day counts as day number one).merican Citizens with valid U.S. passports may enter Korea for a period of 90 days without a visa (arrival day counts as day number one).
If youâve been kissing them or sharing straws or drinks or eating utensils, go have your self checked for mono. They are contagious from the time they contract the virus themselves and may have not been symptomatic for 4 to 7 weeks. Mono has a long incubation period. Iâm sorry if this is bad news, but now you know. If you havenât been kissing or sharing spit, you should be pretty safe.
You don't have to be sick to pass the virus to someone else. EBV stays in your body long after you get over mono. The virus can become active again months or years later, making you contagious once more. Diagnosis. It's hard to tell whether you have mononucleosis just by your symptoms.