Global Health Spotlight: Tuberculosis

Our first monthly Global Health Spotlight: tuberculosis, the world’s deadliest infectious disease, and the proven ways to find, treat and prevent it.

November 2026 · Tuberculosis

The world’s deadliest infectious disease is one we already know how to cure

Tuberculosis (TB) killed 1.13 million people in 2025, about 3,100 lives every day. It is the world’s leading killer from a single infectious agent.

10.6M
people fell ill with TB in 2025

1 in 4
people worldwide have been infected with TB bacteria

370,000
people developed drug-resistant TB in 2025

Global Health Spotlight infographic on tuberculosis. The figures are listed on this page.
Global Health Spotlight: Tuberculosis. Select the image to open it full size.

The good news

TB is preventable and curable

90% of people treated for drug-susceptible TB are treated successfully. What works is proven:

Find

Screen communities and confirm cases with rapid tests.

Treat

A daily course of oral antibiotics for 4 to 6 months costs as little as $50.

Support

One Tb episode can cost a family as much as $1200. Help with food, travel and lost wages allows patients finish treatment.

Prevent

Give preventive treatment to household contacts and people with HIV. Preventive treatment costs as little as $30/patient.

The science is settled. What’s missing is reach, and that is something communities can build.

Sources

World Health Organization, Global Tuberculosis Report 2026 (published November 12, 2026; figures are for 2025). The 90% treatment success rate is for people with drug-susceptible TB who started treatment in 2024. “1 in 4” and the 4-to-6-month treatment course: WHO Tuberculosis fact sheet. “About 3,100 a day” is 1.13 million deaths divided by 365.