Answer to Question #121076 in Biology for Melissa

Question

Is there a difference between incidence and incidence rate with infectious diseases?

Answer 1

Incidence is a number of new cases. In other words, the term reflects the number of people infected with the disease during a certain period. Incidence rate is the frequency of new cases per 1000 person-years meaning the number of infected individuals per 1000 people in the population during one year.