(The Hill) – A researcher at a Merck facility outside of Philadelphia found several vials that were labeled “smallpox,” according to a local TV station. The vials were found in a freezer on Monday ...

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 ...

Lee la historia en español aquí. UPDATE: The CDC announced Thursday that the vials did not contain the virus known to cause smallpox but instead contained the virus used in the smallpox vaccine. More ...

PHILADELPHIA (AP) — Federal health authorities on Wednesday confirmed the discovery of some frozen vials labeled “Smallpox" in a freezer at a facility in Pennsylvania that conducts vaccine research.

An investigation is underway involving the FBI after the Centers for Disease Control and Prevention (CDC) found 15 vials labeled “smallpox” or “vaccinia” at a Merck lab in Montgomery County, ...

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.

This is an archived article and the information in the article may be outdated.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 ...

Vials labeled as smallpox were discovered at a Pennsylvania lab, the Centers for Disease Control and Prevention said Wednesday. The frozen vials "were incidentally discovered by a laboratory worker ...

(The Hill) – A researcher at a Merck facility outside of Philadelphia found several vials that were labeled “smallpox,” according to a local TV station. The vials were found in a freezer on Monday ...