| modern and ancestral genotypes of mycobacterium tuberculosis from andhra pradesh, india. | traditionally, the distribution of the mycobacterium tuberculosis genotypes in india has been characterized by widespread prevalence of ancestral lineages (tbd1+ strains and variants) in the south and the modern forms (tbd1(-) cas and variants) predominating in the north of india. the pattern was, however, not clearly known in the south-central region such as hyderabad and the rest of the state of andhra pradesh where the prevalence of both tuberculosis (tb) and human immunodeficiency virus (hiv ... | 2011 | 22114678 |