Answers:
1.     Incidence
2.     Prevalence
Incidence - the number of new diagnosed cases of disease within a population during a specific time period. It is a proportion of cases in a given time and not a rate of occurrence. It conveys the risk of getting a disease.
Prevalence - the total number of cases with a specific health problem during a specific time period. Â It indicates how widespread a disease is.Â