Nationally Notifiable Diseases Surveillance System (NNDSS)
Definition:
The Nationally Notifiable Diseases Surveillance System (NNDSS) facilitates information sharing on reportable conditions from state, tribal, local, and territorial (STLT) public health agencies to the Centers for Disease Control and Prevention (CDC). These agencies employ electronic disease surveillance systems (EDSS) to securely send deidentified case data, contributing to the national understanding of disease incidence and prevalence. Without NNDSS, it would be difficult to quantify the impacts of reportable disease, identify risk factors, provide actionable information to the public, or inform public health intervention to target and interrupt disease transmission.
National Picture:
More than 3,000 STLT agencies report data for 120 nationally notifiable diseases and nearly 3 million case reports are sent to the CDC annually. Modernizing the NNDSS under the Data Modernization Initiative (DMI) is crucial to ensure interoperability and facilitate the secure transfer of data to the CDC and support national public health DMI goals for actionable and timely data.
As part of the CDC’s Public Health Data Strategy (PHDS), the “CDC Front Door” aims to streamline reporting by consolidating all reportable data into one consistent format and location. This initiative is addressing the existing complexity in reporting through multiple platforms, enhancing efficiency and data standardization.
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