BOCA RATON, Fla., Oct. 5 (UPI) -- Five years after anthrax-laced letters infected 16 people -- five of whom died -- in the eastern United States, the case is still a mystery.

FREDERICK, Md., Aug. 7 (UPI) -- Chevron Corp. and Keenan Development will build a $100 million central utility plant for Maryland's National Interagency Biodefense Campus.

FORT DETRICK, Md., July 30 (UPI) -- Soviet spies may have stolen deadly viruses from a U.S. biodefense laboratory in Maryland in the 1980s and shipped them to Moscow, a report says.

FORT DETRICK, Md., July 30 (UPI) -- The Bush administration is building a massive biodefense laboratory in Maryland that will simulate calamitous bioterrorism attacks, it was reported Sunday.

WASHINGTON, Dec. 28 (UPI) -- The U.S. government plans to spend at least $1 billion on new facilities to fight bioterrorism over the next decade.

WASHINGTON, April 26 (UPI) -- The anthrax letter attacks in 2001 are not the first time an infectious agent has been spread through the mail. A recent article in a scientific journal describes two outbreaks of smallpox in 1901 that were attributed to infected letters, and bioweapon ex

WASHINGTON, March 21 (UPI) -- Anthrax was confirmed twice in samples collected from a Pentagon mail facility initially closed last week and then opened after being declared free of the pathogen, United Press International has learned.

WASHINGTON, March 16 (UPI) -- This week in BioWar: Buildings are reopening and officials at the Pentagon and in nearby Fairfax County, Va., with a stack of negative test results in their hands, are sending bioterrorism task forces home after responding to three positive anthrax test r

WASHINGTON, March 15 (UPI) -- The Defense Department said late Tuesday 70 tests for anthrax conducted in and around the Pentagon grounds in Virginia, Monday and Tuesday, were negative.