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What is Definition of surveillance:- and explain in detail?
surveillance Monitoring Constant scrutiny of factors affecting a disease with attention, authority & suspicion (Systematic ongoing collection, compilation, analysis & interpretation of data) Inbuilt action component is seen Feedback is inbuilt Cyclical continuous process Broader concept Continuous overlooking of progress of health activity [performance & analysis of routine measurements aimed at detecting changes in environment or health status of population - e.g. monitoring of air pollution, water quality, and growth & nutritional status No inbuilt action component No feedback One-time linear process Smaller concept