3 Million TB Cases Go Undiagnosed Each Year—Despite Global Efforts to Close the Gap

In 2022, tuberculosis infected 10.6 million people worldwide, but health systems caught only 7.5 million diagnoses. The 3.1-million gap—cases that slip through undetected—mirrors what WHO found in 2012. After fourteen years of coordinated global strategy, the failure to reach hidden cases persists, revealing how little structural progress has been made.