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National Institutes of Health's National Institute of Allergy and Infectious Diseases (NIAID)
The National Institute of Allergy and Infectious Diseases (NIAID) conducts and supports basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases.
Centers for Disease Control and Prevention (CDC)
The CDC (the national public health institute of the United States) promotes health and quality of life by preventing and controlling disease, injury, and disability.
The History of Vaccines
The History of Vaccines is an informational, educational website created by The College of Physicians of Philadelphia, the oldest professional society in the United States.