1. Select the mismatch. There are four correct choices. endemic - a disease that is easily spread Epidemic - a disease that is commonly found in a region. index case - first case that brought an epidemic mortality rate - total number of deaths in a population morbidity rate - overall death rate Incidence of an infection - overall number of an infection in a population point-source epidemic - infectious agents that came from a single source. prevalence of an infection - number of new cases over a time period endemic - a disease that is A. easily spread Epidemic - a disease that is B. commonly found in a region. index case - first case that C. brought an epidemic mortality rate - total number of D. deaths in a population morbidity rate - overall death E. rate Incidence of an infection - F. overall number of an infection in a population point-source epidemic - G. infectious agents that came from a single source. prevalence of an infection - H. number of new cases over a time period.