In Brazil, extensive Zika testing began last year and is ongoing. In total, an estimated 1.48 million people have tested positive for Zika


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In Brazil, extensive Zika testing began last year and is ongoing. In total, an estimated 1.48 million people have tested positive for Zika


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In Brazil, extensive Zika testing began last year and is ongoing. In total, an estimated 1.48 million people have tested positive for Zika. This total counts all those who tested positive during the very first tests, and continues to count all additional cases that have occurred since. The total population of Brazil is 208 million. With these data, we can calculate which of the following measures of disease:

Cumulative incidence

Incidence rate

Point prevalence

Period prevalence