National Notifiable Diseases Surveillance System

**Semantic type:** Intellectual Product

**Definition:** A multifaceted public health disease surveillance system established in 1961 that provides the underlying data that public health officials at the Centers for Disease Control and Prevention (CDC) use to monitor disease trends, study risk factors, evaluate prevention and control efforts, and target public health resources.

**Synonyms:** - NNDSS - National Notifiable Diseases Surveillance System (NNDSS)