The intersection of the climate crisis and tuberculosis (TB) is emerging as a critical public health challenge, with experts warning that extreme weather and rising temperatures threaten to derail global elimination efforts. According to data from 2024, TB infected 10.7 million people and caused 1.23 million deaths, with Asia remaining the global epicenter of the disease.
Climate Change and the Acceleration of TB Transmission
Environmental shifts are creating “perfect storm” conditions for infectious diseases. Indian infectious disease specialist Subramanian Swaminathan stated on July 9 at the Asia-Pacific International Roche Infectious Disease Symposium (APAC-IRIDS) 2026 that urban density, combined with extreme heat, is accelerating TB transmission. In cities like Mumbai, residents rely heavily on air conditioning, which reduces natural ventilation and traps bacteria in crowded indoor spaces.
While direct evidence linking climate change to TB is still an emerging field of study, the correlation between social vulnerability and disease is clear. Factors such as food insecurity, malnutrition, and overcrowding—all exacerbated by climate-driven disasters—directly impede the body’s ability to resist infection. “My worry is that we don’t have too much time to figure all of this out before this becomes a significant problem,” Swaminathan noted.
Did you know?
Indonesia accounts for 10 percent of the global TB burden, ranking second only to India, which carries 25 percent of the world’s cases.
Disrupting Care During Extreme Weather Events
Climate-driven disasters, particularly severe flooding, have created logistical nightmares for health authorities. Epidemiologist Razia Kaniz Fatima highlighted the situation in Pakistan, where floods have cut off patient access to essential TB services. To maintain continuity of care, authorities have turned to alternative methods, including the use of courier services to deliver diagnostic samples and life-saving medications to isolated communities.
Fatima advocates for a “single-visit” diagnostic model to streamline care in disaster-prone regions. By testing patients for TB and comorbidities like diabetes simultaneously, health systems can shorten the diagnostic window and initiate treatment faster. This integrated approach is increasingly viewed as a necessary adaptation to ensure that health services remain resilient during environmental crises.
Indonesia’s Strategy Shift: From Treatment to Detection
Indonesia is currently recalibrating its approach to meet its 2030 elimination goal of 65 cases per 100,000 people. In 2024, the nation recorded 382 cases per 100,000 people, according to government figures. Pulmonologist Erlina Burhan of Jakarta’s Persahabatan Hospital emphasizes that “finding every possible case is no longer optional,” noting that an estimated 150,000 patients in the country remain undiagnosed and are unknowingly spreading the bacteria.
The Ministry of Health has begun shifting its focus from passive treatment to active case-finding. Second Deputy Health Minister Benjamin Paulus Octavianus announced on July 7 that the government is integrating TB screenings into a national free health-screening program. This initiative, currently active in 13 municipalities across Central and West Java, aims to identify not only active cases but also latent TB in high-risk groups, including children under five and household contacts of known patients.
Pro Tip:
To prevent the development of drug-resistant TB, health experts stress that completing the full, months-long course of treatment is essential. Financial aid and addressing the social stigma associated with the disease are key to ensuring patient compliance.
Frequently Asked Questions
Why does climate change make TB harder to control?
Extreme weather events, such as floods, disrupt access to clinics and diagnostic services. Additionally, rising temperatures force people into crowded, poorly ventilated indoor spaces, which increases the likelihood of bacterial transmission.
What is latent TB?
People with latent TB carry the bacteria but do not show symptoms. However, the bacteria can progress into active disease, making early identification and preventative treatment vital for curbing future outbreaks.
What is the current goal for TB elimination in Indonesia?
Indonesia aims to reduce its TB incidence rate to 65 cases per 100,000 people by 2030. Current efforts include mass screening programs and aggressive contact tracing.
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