About
The National Notifiable Diseases Surveillance System (NNDSS) collects case surveillance data from across the U.S. to keep people healthy.
Collaborating to keep the U.S. healthy
Learn more about NNDSS, its surveillance efforts and the role it plays in the prevention and control of infectious and non-infectious conditions.
Case surveillance and NNDSS help protect the health of communities and the nation.
Learn about the differences between provisional and finalized data at the CDC.
Access a list of notifiable noninfectious disease data tables.
Stories about how case notification data help us understand, track, and respond to health threats.
CDC is collaborating to modernize the exchange of case surveillance data for public health action.
Interested in onboarding?
On March 20, 2024, CDC ended the pause on Message Mapping Guide (MMG) onboarding. Learn how to implement an MMG or contact edx@cdc.gov