Social & Preventive Medicine General 4065483c In a population of 5000, incidence of disease is 100 in 1 year duration of disease studied for is 2 years calculate Prevalance - A 20/1000 B 40/1000 C 80/1000 D 400/1000 High-Yield Explanation Ans. is 'b' i.e., 40/1000