
National Notifiable Diseases Surveillance System
The National Notifiable Diseases Surveillance System (NNDSS) is a program in the U.S. that tracks certain infectious diseases reported by healthcare providers and labs. Its goal is to monitor disease trends, detect outbreaks early, and guide public health responses. When a healthcare provider diagnoses a notifiable disease, they report it to local health authorities, who then share it with state and national agencies. This system helps public health officials understand where and how diseases spread, enabling them to take actions to protect community health effectively.