Chad Jones, spokesman for Fort Meade, said CID is investigating the possibility of missing virus samples from the U.S. Army Medical Research Institute of Infectious Diseases.
USAMRIID is the Army's top biodefense lab, where researchers study pathogens including Ebola, anthrax and plague.
In February, USAMRIID halted all its research into these and other diseases, known as "select agents" following the discovery of virus samples that weren't listed in its inventory.