Drug-resistant tuberculosis in high-risk groups, Zimbabwe

Area of Science:

• Microbiology
• Infectious Diseases
• Public Health

Background:

• Tuberculosis (TB) remains a significant global health challenge.
• Drug-resistant strains of TB, particularly multidrug-resistant tuberculosis (MDR TB), pose a growing threat.
• Estimating the prevalence of MDR TB is crucial for effective control strategies.

Purpose of the Study:

• To estimate the prevalence of multidrug-resistant tuberculosis (MDR TB) in Harare, Zimbabwe.
• To assess the burden of drug-resistant TB in a specific patient population.

Main Methods:

• Microbiologic testing was conducted on sputum samples.
• Samples were obtained from patients previously treated for TB and positive for acid-fast bacilli.
• The study was conducted in Harare, Zimbabwe, in 2012.

Main Results:

• Twenty out of 84 (24%) specimens tested were consistent with MDR TB.
• This indicates a high prevalence of drug-resistant TB in the studied cohort.
• The findings highlight a potential public health concern in the region.

Conclusions:

• A significant proportion of previously treated TB patients in Harare harbor MDR TB.
• A comprehensive national drug-resistance survey is urgently needed to determine the true prevalence of MDR TB in Zimbabwe.
• These findings underscore the importance of robust TB surveillance and treatment programs.