American Public Health Association (APHA)
American Type Culture Collection (ATCC)
Asssociation of Public Health Laboratories (APHL)
Association of State and Territorial Health Officers (ASTHO)
Centers for Disease Control and Prevention (CDC)
Food and Drug Administration (FDA)
Hardin Meta Directory - Public, Occupational and Environmental Health
Hardin Meta Directory for Internet Health Sources
National Institutes of Health (NIH)
The Council of State and Territorial Epidemiologists (CSTE)
University of Michigan School of Public Health
World Health Organization (WHO)