A Merck vaccine research lab in the Philadelphia area was temporarily placed on lockdown Tuesday night after the discovery of "questionable" vials inside a freezer that were labeled "smallpox" and ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (The Hill) – A researcher at a Merck ...

The National Institutes of Health (NIH) revealed Tuesday that six decades-old vials of the smallpox virus were discovered earlier this month at a government laboratory in Bethesda, Md. The extremely ...

Vials labeled 'smallpox' that were discovered in a freezer in a Philadelphia laboratory don't contain any traces of the deadly virus, federal health officials reveals. The Centers for Disease Control ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. PHILADELPHIA (AP) — Federal health ...

The same federal scientist who recently found forgotten samples of smallpox at a federal lab also uncovered over 300 additional vials, many bearing the names of highly contagious viruses and bacteria.