My Kid was suffering from mild fever. Doctor suggested for antibiotic for 3 days. While medication fever did not occur. After dose was complete again an other doctor suggested some more antibiotic. After 3 days completion of dose the fever again reoccur. Doctor advised to have blood test and MT test. As per report the kid was diagnosed with S. typhy "o" positive 1:40, while the MT test (0.5TU) was negative. He prescribed three medicine for 3 days. Mega - CV syrup, Alkasol(Disodium Hydrogen Citrate Solution) and Vicox -3 KID . After 3 days the doctor told every thing is fine but the tablet Vicox -3 KID should be continued daily initially for 2 months and later might be continued for 6 months. My question is why TB medication was started if MT test was negative.