1. A certain disease is currently found in 1 of every 10 people in the country

and 1,000 people contract the disease yearly. The population of the country

is 4,500,000. Which of the following statements is correct?

a. The prevalence of the disease is 10% and the incidence is .02%.

b. The prevalence of the disease is .02% and the incidence is 10%.

c. Neither is correct.

d. There is insufficient data:

Answer:

A

2. In relation to disease development, the term "etiology" refers to which of

the following?

a.number of people with the disease

b. cause of the disease

c. definition of the disease

d. outcome of the disease:

Answer:

B

3. Which of the following is(are) true about "symptoms"?

a. objective and measurable

b. the same as "signs"

c. both of the above

d. neither of the above:

Answer:

D

4. In 1992, there were 980 deaths in a Midwestern city with a population of

1,000,000. At the beginning of that year, 900 cases of AIDS existed in this

population. During the year, 250 new cases of AIDS were diagnosed, and 75

people died of the disease in 1992.

Using the data given above, what was the incidence rate (per 100,000 population)

at the end of 1992 for AIDS?