TB survivors remain at risk even after treatment

NEW DELHI: A new study involving researchers from India and the United States has found that people who have successfully completed tuberculosis (TB) treatment may continue to face significant health risks after recovery. The TB Aftermath (TBAM) study, conducted by researchers from Dr. D. Y. Patil Medical College, Johns Hopkins University and India’s National Tuberculosis Elimination Programme, highlights the need for continued monitoring of TB survivors and their household contacts.

The study followed 1,076 TB survivors and 3,309 household contacts for 18 months after completion of treatment across six government TB clinics in Pune, Maharashtra. Researchers examined whether regular follow-up could help identify recurrent TB at an early stage and compared telephone-based screening with home-based screening.

According to the findings, 75 TB survivors, or around 7%, developed recurrent TB during the follow-up period. In addition, 30 household contacts, or about 1%, were newly diagnosed with TB. Researchers noted that the median time to diagnosis was less than six months after treatment completion, suggesting that the period immediately following treatment is particularly important for monitoring.

The study also found differences between the two follow-up approaches. While telephone-based screening was found to be comparable to home-based screening for detecting TB among survivors and household contacts together, home-based screening identified more cases of recurrent TB among survivors specifically. This indicates that in-person follow-up could be especially valuable in areas with a high burden of tuberculosis.

Another important aspect of the research was the use of portable spirometry during home visits to assess lung health. TB can leave lasting damage to the lungs even after the infection has been treated, and researchers said that post-treatment care should therefore address not only recurrence but also long-term respiratory problems.

The findings underline the importance of strengthening post-treatment surveillance as part of TB-control programmes. Early identification of recurrent disease can help patients receive treatment sooner while also reducing the risk of further transmission within households and communities.

The researchers said the evidence supports a more patient-centred approach to TB care, in which treatment does not simply end when a patient completes the prescribed course of medicines. Regular follow-up, symptom screening and assessment of lung health could play an important role in improving long-term outcomes for TB survivors.

The study, published in The Lancet Global Health, has particular relevance for countries such as India, where tuberculosis remains a major public-health challenge. Researchers believe that structured follow-up after treatment could help strengthen efforts to reduce TB transmission and improve the quality of life of people who have recovered from the disease.

Keywords: tuberculosis, TB survivors, TB recurrence, TB treatment, TB aftermath study, India TB, public health, TB screening, lung health, TB research, household contacts, recurrent TB, Pune, healthcare, infectious diseases, India health news