Infectious disease surveillance system descriptors: proposal for a comprehensive set

Area of Science:

• Public Health
• Epidemiology
• Health Systems Research

Background:

• Effective surveillance systems require clear structural element descriptions.
• Existing recommendations often lack comprehensiveness and clarity in terminology.
• Confusion in interpreting surveillance system terms hinders accurate evaluation.

Purpose of the Study:

• To propose a comprehensive set of surveillance system descriptors.
• To delineate key elements and clarify terminology for surveillance systems.
• To aid in tailoring surveillance systems to specific objectives and evaluating fitness for purpose.

Main Methods:

• Identification of essential surveillance system components.
• Classification of 20 identified descriptors into five categories: surveillance scheme, population and cases, supplementary data, information flow, and time period.
• Development of clear and simple definitions for each descriptor.

Main Results:

• A proposed set of 20 comprehensive surveillance system descriptors.
• Classification into five distinct categories for structured understanding.
• Clear definitions to minimize ambiguity and misinterpretation.

Conclusions:

• The proposed descriptors provide a framework for understanding and evaluating surveillance systems.
• Clear definitions and a comprehensive list of elements are crucial for system design and assessment.
• These descriptors, alongside data requirements and dissemination plans, can establish surveillance standards.