In a new statement, the Centers for Disease Control and Prevention said the vials found in a Pennsylvania lab contained vaccinia, the virus used in the smallpox vaccine. By Johnny Diaz This article ...

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 ...

"There is no indication that anyone has been exposed." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Update: Lab testing by the Centers for ...

Vials labeled "smallpox" were found in a freezer at a lab in Pennsylvania, not long after Bill Gates cited a smallpox attack in an interview. There is no evidence of a connection between the two ...