Researchers knew the HIV outbreak in the small town of Austin, Ind., was related to IV drug use. Mapping how the virus mutated over time revealed its path — and how it might have been stopped.

The U.S. has seen more measles cases in 2025 than in any year since the virus was declared "eliminated" in 2000.

This year's measles outbreak is the largest in recent memory. But from 1989 to 1991, more than 55,000 people got measles. Federal funding and parents embracing vaccines halted the outbreak.

U.S. declares monkeypox public health emergency 01:57. The Biden administration is declaring a public health emergency for the monkeypox outbreak in the United States, which now counts more ...

New York City declares public health emergency as measles outbreak reaches 285 cases. A total of 285 cases have been recorded since last October. By Morgan Winsor. April 10, 2019, 3:37 AM.

On Wednesday, the World Health Organization (WHO) declared that an acceleration in mpox infections in parts of Africa constitutes a public health emergency of international concern. Here’s what ...

Nearly 100 people have likely contracted blastomycosis in an outbreak at the Billerud Paper Mill in Escanaba, Michigan, according to numerous reports and a press release from Public Health Delta ...

Mayor Bill de Blasio declared a public health emergency at Brooklyn Public Library’s Williamsburg Branch Tuesday morning in response to the growing spread of the measles virus in Brooklyn’s Orthodox ...