Biological agents are bacteria, viruses, and toxins that can kill or incapacitate people, livestock, and crops. The following resources from several U.S. Government agencies can help you deal with this type of emergency.
What to do before, during and after a biological threat
Information on specific bioterrorism agents as well as agent-specific fact sheets
(Centers for Disease Control)
Resources on specific agents like anthrax and smallpox as well as treatment and screening information
(U.S. National Library of Medicine)
Information on drug therapy and vaccines, plus advice on purchasing and taking medication for a number of biological agents
(U.S. Food and Drug Administration)