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.
Mono needs to run its course naturally. Symptoms may last 2 to 4 weeks, and some people feel tired for several weeks longer (that's why it's important to take care of yourself and get lots of rest). Doctors and researchers aren't exactly sure how long people with mono stay contagious after symptoms are gone. They believe that people can spread the infection for many months after their symptoms are completely gone â some studies show as long as 18 months.