Working in the health field

Provide two reasons why someone working in the health field would want to know the
distribution of an exposure and provide two reasons why a person working in the health field
would want to know the distribution of an outcome. In 2015, 17,987 new cases of hepatitis C were reported in the United States. The 2015
midyear population was estimated to be 290,809,777. Calculate the cumulative incidence (per
1,000 population) of hepatitis C in the United States during 2015. (hints: you will use the
midyear population of the USA as the total population, also, assume everyone is at risk for
Hepatitis C)