2 doctors weighed in:

I had the hepatitis and typhoid shots in 2009 before going overseas. Do I have to get another shot before I go to cambodia again?

2 doctors weighed in
Dr. Robert Kwok
Pediatrics
1 doctor agrees

In brief: 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.

In brief: 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.
Dr. Robert Kwok
Dr. Robert Kwok
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