Bioterrorism and waterborne pathogens: how big is the threat?
D000336:Aerosols; D023482:Bioterrorism; D004189:Disaster Planning; D004219:District of Columbia; D006801:Humans; D011640:Public Policy; D018570:Risk Assessment; D014481:United States; D014484:United States Environmental Protection Agency; D018508:Water Purification / Q000379:methods*; D014881:Water Supply