WHO fact sheet on tuberculosis (TB): includes key facts, definition, global impact, treatment, HIV and TB, multidrug-resistant TB and WHO response.

Tuberculosis (TB) is the worlds top infectious killer. Nearly 4500 people lose their lives and 30 000 people fall ill with TB each day. TB is contagious and airborne. It is caused by bacteria.

The WHO Global tuberculosis report 2025 provides a comprehensive and up-to-date assessment of the TB epidemic and of progress in prevention, diagnosis and treatment of the disease,.

Understanding the Context

Tuberculosis (TB) is caused by bacteria (Mycobacterium tuberculosis) that most often affect the lungs. About one-quarter of the world's population has been infected with TB bacteria. In.

Tuberculosis (TB) is the worlds top infectious killer. Nearly 4500 people lose their lives and 30 000 people fall ill with TB each day. TB is contagious and airborne. It is caused by bacteria (Mycobacterium.

About one quarter of the worlds population is infected with tuberculosis (TB) bacteria. Only a small proportion of those infected will become sick with TB. People with weakened immune.

The theme of World TB Day 2026 - Yes! We can end TB! - is a bold call to action and a message of hope, affirming that it is possible to get back on track and turn the tide on the TB epidemic,.

Key Insights

Tuberculosis (TB) is caused by bacteria (Mycobacterium tuberculosis) that most often affect the lungs. Tuberculosis is curable and preventable.

The estimated increases in TB incidence between 2020 and 2023 were the consequence of disruptions to TB diagnosis and treatment during the COVID-19 pandemic, when the reported number of people newly.

The three consecutive years of increasing global TB incidence from 20212023 mean that in 2023, the TB incidence rate returned to the level of 2018 (Fig. 1.1.1, panel b). Globally, the net reduction in the TB.