Diphtheria Surveillance and Trends

Source: CDC Content Services, Centers for Disease Control and Prevention

Last synced 6/12/2026Status: primary verified

CDC tracks diphtheria cases nationally. Diphtheria is now an uncommon disease in the United States.

Educational only

This information is for general education and is not medical advice. Always talk to a licensed U.S. clinician about your situation, medications, or treatment decisions.