The World Health Organization (WHO) published a new report on tuberculosis revealing that approximately 8.2 million people were newly diagnosed with TB in 2023 – the highest number recorded since WHO began global TB monitoring in 1995.
This represents a notable increase from 7.5 million reported in 2022, placing TB again as the leading infectious disease killer in 2023, surpassing COVID-19.
WHO’s Global Tuberculosis Report 2024 highlights mixed progress in the global fight against TB, with persistent challenges such as significant underfunding. While the number of TB-related deaths decreased from 1.32 million in 2022 to 1.25 million in 2023, the total number of people falling ill with TB rose slightly to an estimated 10.8 million in 2023.
With the disease disproportionately affecting people in 30 high-burden countries, India (26%), Indonesia (10%), China (6.8%), the Philippines (6.8%) and Pakistan (6.3%) together accounted for 56% of the global TB burden. According to the report, 55% of people who developed TB were men, 33% were women and 12% were children and young adolescents.
In 2023, the gap between the estimated number of new TB cases and those reported narrowed to about 2.7 million, down from COVID-19 pandemic levels of around 4 million in 2020 and 2021. This follows substantial national and global efforts to recover from COVID-related disruptions to TB services. The coverage of TB preventive treatment has been sustained for people living with HIV and continues to improve for household contacts of people diagnosed with TB.
However, multidrug-resistant TB remains a public health crisis. Treatment success rates for multidrug-resistant or rifampicin-resistant TB (MDR/RR-TB) have now reached 68%. But, of the 400 000 people estimated to have developed MDR/RR-TB, only 44% were diagnosed and treated in 2023.
Global funding for TB prevention and care decreased further in 2023 and remains far below target. Low- and middle-income countries (LMICs), which bear 98% of the TB burden, faced significant funding shortages. Only US$ 5.7 billion of the US$ 22 billion annual funding target was available in 2023, equivalent to only 26% of the global target.
Globally, TB research remains severely underfunded with only one-fifth of the US$ 5 billion annual target reached in 2022.
For the first time, the report provides estimates on the percentage of TB-affected households that face catastrophic costs (exceeding 20% of annual household income) to access TB diagnosis and treatment in all LMICs. These indicate that half of TB-affected households face such catastrophic costs.
Global milestones and targets for reducing the TB disease burden are off-track, and considerable progress is needed to reach other targets set for 2027 ahead of the second UN High-Level Meeting.
