Public Health

A novel influenza variant called subclade K appears to be driving an uptick in cases and hospitalizations throughout the U.S. and other countries

This week’s science roundup covers 2025’s near-record heat, a new mpox strain and fresh clues about why hobbits vanished 50,000 years ago.

The U.S.’s and Denmark’s health systems are starkly different, so it makes sense that their vaccination schedules would differ, too

The FDA is reportedly considering the addition of high-level warning labels to COVID vaccines, a move that some experts say may cause unfounded concerns over safety

More than 1,900 people, mostly children, have been sickened by measles in the U.S. in 2025. The outbreaks are moving the country toward losing its measles-free status by early next year

A new study identifies a mechanism for how COVID vaccines may, in infrequent cases, drive heart inflammation, a condition that can be caused by the disease itself

New guidance from the CDC’s vaccine advisory panel scraps a decades-old universal birth dose recommendation for hepatitis B that helped cut infections by 99 percent in the U.S.

Members of the CDC’s Advisory Committee on Immunization Practices seemed confused about a proposed recommendation for the birth dose of the hepatitis B vaccine

Without the gene Poc5, male mice produced no viable sperm, pointing to a possible link to infertility

Scientific American hosted an event at Morehouse School of Medicine to highlight medical advances in treating sickle cell disease and how far we still have to go

New WHO guidance calls for a worldwide obesity treatment “ecosystem” to ensure that GLP-1 weight-loss drugs are used fairly

H5N1 bird flu has been circulating in U.S. wildlife since late 2021 but has caused only one human fatality. Now a different type of bird flu has also caused a death