The Pentagon says it inadvertently shipped live anthrax spores to as many as nine laboratories and is investigating how it happened.
One of those labs is in Virginia. It has not been disclosed exactly where.
The labs were supposed to receive dead, or inactivated anthrax samples for research. The live spores were shipped from Dugway Proving Ground in Utah, a defense department facility, to government and commercial labs in the nine states.
Contact with live anthrax spores can cause severe illness.