Cases in case surveillance means a count of actual diagnosed cases of a disease. National Notifiable Diseases Surveillance System (NNDSS) What is Case Surveillance? Case surveillance is foundational to public health practice. It helps us to understand diseases and their spread and determine appropriate actions to control outbreaks. Case surveillance occurs each time public health […]

![What is Case Surveillance? Print Overview Fact Sheet [162 KB, 2 Pages, 508] Case surveillance is foundational to public health practice. It helps us to understand diseases and their spread and determine appropriate actions to control outbreaks. Case surveillance occurs each time public health agencies at the local, state, or national levels collect information about a case or person diagnosed with a disease or condition that poses a serious health threat to Americans. These diseases and conditions include infectious diseases, such as coronavirus disease 2019 (COVID-19); foodborne outbreaks, such as E.coli; and noninfectious conditions, such as lead poisoning. View or Download Our Materials Infographic PDF [341 KB, 2 Pages, 508] Overview Fact Sheet [162 KB, 2 Pages, 508] Case surveillance starts at local, state, and territorial public health departments. Local laws and regulations specify which diseases and conditions must be reported.](https://wat3rm370n.com/wp-content/uploads/2024/09/image-12.png)