Maybe not, but . . .
Travelers to asia can be vaccinated against diseases such as hep a, hep b, and typhoid, before traveling.
A typhoid vaccine
injection may be wearing off after 3 yrs (the oral typhoid vaccine is said to last about 5 yrs). If a traveler is a routine, short-term tourist, he doesn't have to check his hep a&b antibodies. If he is staying long-term or at high risk, he can get antibodies checked first.