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Now let’s talk about data analyses. Analyses of surveillance data should take place on a regular and ongoing basis, with special analyses added when disease outbreaks or unusual health conditions occur. Results from data analyses should be reviewed regularly, and reported back to local health care providers and institutions within the community who originally reported cases of disease, exposures to health risks, occurrence of health promotion and disease prevention behaviors, and other information to the surveillance system. Summaries of data analyses should also be reported to policy makers and intervention program planners who can use the data to take public health action.