Diseases

Agency for Healthcare Research and Quality
U.S. Department of Health & Human Services

CDC Wonder 
Centers for Disease Control and Prevention

National Center for Health Statistics
Centers for Disease Control and Prevention

Statistical Abstract
U.S. Census Bureau

Chronic Diseases 

Atherosclerosis Risk in Communities Study    
Gillings School of Global Public Health UNC-Chapel Hill

Cancer Mondial    
International Agency for Research on Cancer

Diabetes Data and Statistics    
Centers for Disease Control and Prevention

Heart and Stroke Statistics    
American Heart Association

National Cancer Institute Statistics    
National Cancer Institute

Surveillance, Epidemiology, and End Results Program (SEER)    
National Cancer Institute

US Renal Data System    
National Institute of Diabetes and Digestive and Kidney Diseases

Communicable Diseases

Influenza Fact Sheet    
American Lung Association

Morbidity and Mortality Weekly Report    
Centers for Disease Control and Prevention

National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention    
Centers for Disease Control and Prevention

Pneumonia Fact Sheet    
American Lung Association

AIDSinfo    
UNAIDS

Vaccines and Immunization: Statistics and Surveillance    
Centers for Disease Control and Prevention