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?  

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?