Answer the following questions concisely (no more than half a page per question) 1. What is an epidemic? A pandemic? Name some diseases that caused epidemics in the past. Name some diseases that are epidemic today. 2. In a descriptive epidemio

Answer the following questions concisely (no more than half a page per question)

1. What is an epidemic? A pandemic? Name some diseases that caused epidemics in the past.

      Name some diseases that are epidemic today.  

2. In a descriptive epidemiological study, what types of information does the epidemiologist gather?

3. Why are prevalence rates more useful than incidence rates for measuring chronic diseases?