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U.S. bacterial meningitis cases surged in 2024, linked to lower teen vaccinations and a policy shift reducing routine adolescent shots.
Bacterial meningitis cases in the U.S. have risen sharply since 2021, with over 500 reported in 2024—the highest since 2013—prompting concern among health experts.
The increase, linked to declining teen vaccination rates and a resurgence of the Y serogroup strain, comes after the CDC, under Health Secretary Robert F. Kennedy Jr., shifted from universal adolescent vaccination to recommending the meningococcal vaccine only for high-risk groups through shared clinical decisions.
The disease, which can kill within 24 hours and cause lasting disabilities, remains a serious threat, especially to adults aged 30 to 60, Black individuals, and people with HIV.
Experts warn the policy change, modeled after Denmark’s approach, lacks strong evidence and risks reversing decades of progress in preventing a deadly, fast-moving infection.
Los casos de meningitis bacteriana en los Estados Unidos aumentaron en 2024, vinculados a la menor vacunación de adolescentes y un cambio de política que redujo las inyecciones de rutina para adolescentes.