TAB vaccine is effective against ___.
Typhoid
A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins. TAB vaccine is a combined vaccine used to produce immunity against the diseases typhoid, paratyphoid A, and paratyphoid B.