A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to know about symptoms and vaccines.

Scientists have known that major outbreaks often originate in wildlife – swine flu, avian flu and even SARS-CoV-2 all started ...

The U.S. Centers for Disease Control and Prevention has accepted recommendations made by a panel of vaccine experts in April, ...

The CDC panel voted against an ingredient that the anti-vaccine movement has long targeted, while Arcadia was acquired by ...

In the shadows of Python Cave, Uganda, a leopard leaps from a guano mound—formed by bat excrement—and sinks its teeth into a ...

In a powerful display of regional unity and commitment to strengthening public health systems, senior health officials, government leaders, and public health professionals from across Southern Africa ...

By a 5-2 vote, the Advisory Committee on Immunization Practices endorsed Merck’s Enflonsia for babies born during or entering their first RSV season.

Deadly viruses throughout history From the Ebola to COVID-19, diseases caused by viruses have killed humans throughout history. Viruses are much older than human beings, possibly even older than ...

U.S. Health Secretary Robert F. Kennedy Jr.’s new vaccine advisers meet next week. Their agenda suggests they’ll skip some expected topics, including a vote on COVID-19 shots.

Local health agencies have already found virus-positive mosquitoes in Sacramento, Kern, Tulare, and Santa Clara counties, according to the California West Nile Virus program.