Public health surveillance helps communities identify health threats, understand how they are changing, and decide how to prevent or control them. This lesson introduces the purpose and process of surveillance, how cases are reported, and how surveillance case definitions support consistent reporting.
Public health surveillance is the ongoing, systematic collection, analysis, and interpretation of health-related data that are essential to planning, implementing, and evaluating public health practice. It can monitor communicable and noncommunicable diseases, injuries, and related risk factors in a population.
All flashcards
What is public health surveillance?
The ongoing, systematic collection, analysis, and interpretation of health-related data used to plan, implement, and evaluate public health practice.
What is case surveillance?
The collection of information about individuals diagnosed with conditions that may threaten others. It helps describe affected populations, locations, and illness patterns.
What does NNDSS do?
The National Notifiable Diseases Surveillance System helps the CDC track reportable and notifiable diseases and conditions using information supplied through public health reporting systems.
What is a surveillance case definition?
A set of criteria used to classify a disease for public health reporting and tracking, supporting consistent case counts across jurisdictions.
How does a surveillance definition differ from a clinical diagnostic criterion?
A surveillance definition supports standardized population-level reporting. Clinical diagnostic criteria help providers diagnose, manage, and treat individual patients.
Quiz questions
What does an outbreak mean in a defined population, place, and time?Answer: More cases of a condition than would normally be expected.
How do investigators commonly organize information to describe an outbreak?Answer: By person, place, and time.
What can closely matching pathogen DNA patterns found through whole genome sequencing suggest?Answer: The infections may be linked to a common source.
In a foodborne outbreak investigation, how may investigators test an exposure hypothesis?Answer: Compare foods eaten by ill people with foods eaten by well people in a similar group.
When might public health officials begin control measures during an outbreak investigation?Answer: When risk is substantial and an effective measure is available, even if details remain uncertain.
Based on Population Health for Nurses by Jessica Ochs, Sherry L. Roper, Susan M. Schwartz (OpenStax), licensed CC BY 4.0. Adapted into a summary, flashcards and quizzes.