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Frequency of extensively drug-resistant tuberculosis in Pakistan increased from 1.5% in 2006 to 4.5% in 2009 (p<0.01). To understand the epidemiology, we genotyped selected strains by using spoligotyping, mycobacterial interspersed repetitive units-variable number of tandem repeats, and IS6110 restriction fragment length polymorphism analysis.
INTRODUCTION Central Asian Strain 1 (CAS1) is the predominant Mycobacterium tuberculosis genotype in Pakistan. The occurrence of deletions in regions of differences (RDs) among CAS1 and other predominant genogroups in the country were investigated. METHODOLOGY Using stratified random sampling, 235 M. tuberculosis (185 pulmonary; 50 extrapulmonary) strains… (More)
A fluoroquinolone (FQ) resistance rate of 5.9% is reported in 205 Mycobacterium tuberculosis isolates from patients presenting to field clinics in Karachi, Pakistan (2006 to 2009). FQ resistance among multidrug-resistant (MDR) strains was 11.1% (5/45), and it was 4.9% (5/103) in M. tuberculosis strains susceptible to all first-line agents. Spoligotyping of… (More)