Molecular Characteristics and Drug Susceptibility of Mycobacterium tuberculosis Isolates from Patients Co-infected with Human Immunodeficiency Virus in Beijing,China

70 clinical Mycobacterium tuberculosis strains isolated from AIDS patients in two HIV/AIDS referral hospitals in Beijing were used in this study.M.tuberculosis and non-tuberculosis mycobacterium(NTM)were identified by using multi-locus PCR.M.tuberculosis was genotyped by using 15-locus MIRU-VNTR technique and spoligotyping afterwards.Meanwhile,the drug susceptibilities of the strains to the four first-line anti TB drugs(rifampin,isoniazid,