CDC epidemiology journal; main vehicle for public health recommendations
Measles cases have surged across several countries since March, stressing hospitals and vaccination programs. Bangladesh reports thousands of infections and hundreds of deaths; officials say vaccination campaigns are expanding, while UNICEF cautions about gaps in immunisation. In the United States, a multi-state outbreak has prompted emergency vaccination efforts and data reviews.
Since 2025, measles outbreaks have spread in unvaccinated communities in the United States, prompting therapeutic research and policy debates. Outbreaks have climbed nationally, with California and other states reporting rising case counts and hospitalizations. Experts warn that misinformation compounds transmission, while high vaccination coverage remains vital for herd immunity.
A JAMA Network Open study finds the vaccine reduces COVID-19-related hospitalizations by about 55% and lowers visits to emergency departments by 50%. The paper has drawn attention because of past political interference in CDC publishing decisions. The study uses a test-negative design and is part of ongoing assessments of vaccine performance amid evolving viral strains.