Assertion: surveillance's use | /r/CapableOf | set health program priorities
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text: Some uses of surveillance systems in public health are:describing trends and the natural (secular) history of health problems, detecting epidemics, providing details about patterns of disease, monitoring changes in disease agents through laboratory testing, planning and setting health program priorities, evaluating the effects of prevention and control measures, and detecting critical changes in health practices (NDC, , 2018).