1
, Source
Gordis, L. (2014). Epidemiology (5th ed.). Philadelphia, PA: Elsevier Saunders. Chapter 3,
p.41
2. The prevalence rate of HIV cases in Springfield, Missouri as of June 30, 2014 was:
A. 14 per 100,000 population
B. 28 per 100,000 population
C. 79 per 100,000 population
D. 130 per 100,000 population
Population: 200,000
New HIV cases=28
Current HIV cases=130
Prevalence rate= total number of people infected by disease at a specific time ( new + current HIV
cases) 130+28=158
Total population =200,000
158 x 100,000 = 79
200,000
2
, Source
Gordis, L. (2014). Epidemiology (5th ed.). Philadelphia, PA: Elsevier Saunders. Chapter 3,
p.41
2. The prevalence rate of HIV cases in Springfield, Missouri as of June 30, 2014 was:
A. 14 per 100,000 population
B. 28 per 100,000 population
C. 79 per 100,000 population
D. 130 per 100,000 population
Population: 200,000
New HIV cases=28
Current HIV cases=130
Prevalence rate= total number of people infected by disease at a specific time ( new + current HIV
cases) 130+28=158
Total population =200,000
158 x 100,000 = 79
200,000
2
