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What is In a population of 5000, number of new cases of TB is 500; old cases in the same population are 150. What is the prevalence of TB: and explain in detail?
Ans. (c) 13%Ref: K. Park 23rd ed. / 61* Prevalence is calculated asNo. of new cases + no of old casesTotal Populationx 100* Therefore prevalence =500 + 1505000x 100* Prevalence =13%Also Know* Prevalence is a Proportion* Incidence is a Rate