FDA Vaccines page. Scroll down to see information about anthrax and smallpox (listed under counterterrorism). You can also search the site for specific bacteria or viruses.

Biodefense web site of the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH), includes biodefense-related information for biomedical researchers, the public, and the media.

The Biomedical Advanced Research and Development Authority (BARDA), within the Office of the Assistant Secretary for Preparedness and Response in the U.S. Department of Health and Human Services, provides an integrated, systematic approach to the development and purchase of the necessary vaccines, drugs, therapies, and diagnostic tools for public health medical emergencies.

BARDA manages Project BioShield, which includes the procurement and advanced development of medical countermeasures for chemical, biological, radiological, and nuclear agents, as well as the advanced development and procurement of medical countermeasures for pandemic influenza and other emerging infectious diseases that fall outside the auspices of Project BioShield.  In addition, BARDA manages the Public Health Emergency Medical Countermeasures Enterprise (PHEMCE).