Stool4TB


Evaluating a new stool-based qPCR for diagnosis of tuberculosis in children and people living with HIV

Tuberculosis (TB) continues to be a leading cause of morbidity and mortality among children and people living with HIV (PLHIV). TB is caused by the bacillus Mycobacterium tuberculosis, which is spread when people who are sick with TB expel bacteria into the air; for example, by coughing. The disease typically affects the lungs (pulmonary TB) but can also affect other sites (extrapulmonary TB). About a quarter of the world’s population is infected with M. tuberculosis. Despite significant progress in TB diagnostics, improvement of childhood TB diagnosis continues to be a major challenge and is a highlighted research priority for EDCTP2. TB laboratory confirmation is particularly challenging in children and PLHIV given the difficulty in obtaining sputum samples and the paucibacillary nature of the disease.

Key Facts

 

A total of 1.4 million people died from TB in 2019 (including 208 000 people with HIV). Worldwide, TB is one of the top 10 causes of death and the leading cause from a single infectious agent (above HIV/AIDS).

In 2019, 1.2 million children fell ill with TB globally. Child and adolescent TB is often overlooked by health providers and can be difficult to diagnose and treat.

Multidrug-resistant TB (MDR-TB) remains a public health crisis and a health security threat. A global total of 206 030 people with multidrug- or rifampicin-resistant TB (MDR/RR-TB) were detected and notified in 2019, a 10% increase from 186 883 in 2018.

-World Health Organization, 2020