Frozen vials labeled "Smallpox" that were discovered in a freezer at a vaccine research facility in Pennsylvania "contain no trace of virus known to cause smallpox," federal health officials said. The ...

It all started with an unremarkable trip to grandma’s house in 1970. But two days into the visit, something went terribly wrong. The 9-month-old grandson fell ill. First, a fever. Then, a nasty rash.

PHILADELPHIA (WABC) -- The US Centers for Disease Control and Prevention says several questionable vials found at a Merck facility in Montgomery County, Pennsylvania, did not contain variola virus, ...

It was late November of 1801, and William C. C. Claiborne arrived in Natchez only a few months before a smallpox epidemic hit the Mississippi Territory. Claiborne had just been appointed to his ...

PHILADELPHIA (WPVI) -- The US Centers for Disease Control and Prevention says several questionable vials found at a Merck facility in Montgomery County, Pennsylvania did not contain variola virus, the ...

On Dec. 9, 1979 — 45 years ago Monday — a commission of doctors working with the World Health Organization declared that smallpox had been eradicated from the face of the Earth. The disease, which ...

Frozen vials with “smallpox” labels found at a Pennsylvania lab contain the virus used in the vaccine for the virus and not the virus that causes the disease, public health officials said Thursday.

A haunting exploration of North American colonial history reveals the overlooked narrative of biological warfare against ...

In a recent study posted to medRxiv* preprint server, researchers estimated the efficacy of a single-dose Modified Vaccinia Ankara-Bavaria Nordic (MVA-BN) vaccine against mpox (MPX) in gay, bisexual, ...

A federal initiative launched in 2003 to vaccinate healthcare workers against smallpox reached only a fraction of the people it sought. But veterans of the effort say elements of the Bush ...