The CDC Roybal Campus. Source: CDC.gov

The embattled director of the Centers for Disease Control’s Bioterror Rapid Response and Advanced Technology Laboratory has resigned, according to the Associated Press and Reuters.

Both news organizations report that Michael Farrell submitted his resignation after it was discovered that dozens of employees were potentially exposed to live anthrax bacteria. To read the Reuters story, click here. To read the Associated Press story, click here.

CDC has not responded to a request for comment about these reports.

The CDC’s initial investigation determined more than 80 employees were exposed to the bacteria. Investigation of that incident led to other revelations about safety lapses at the bioterror lab.