Cumulative incidence of influenza a

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Use the following data to answer the questions below. On January 1, 2000, there were 600 Tufts medical students, of which 20 tested positive with Influenza A. These 20 students were immune from contracting Influenza A again during the next nine months. From January 2 through April 2, 2000, 30 more students developed Influenza A. The class size remained at 600.

What was the cumulative incidence of Influenza A from January 2, 2000 through April 2, 2000?

Reference no: EM132848204

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