This may develop in cutaneous TB scars around 25 to 30 years after the original infection. If a person has inactive TB, they may not experience these symptoms at first. However, TB remains in the ...

Drug resistance in Mycobacterium tuberculosis arises from the man-made selection of mutants that result from spontaneous chromosomal alterations. Preventing the development of drug-resistant TB ...

2009;2(4):405-421. Ethambutol (EMB) and pyrazinamide (PZA) in Category A should be included in the regimen for treatment of MDR-TB, if they are likely to be effective from laboratory evidence or ...