A pay was attended by 110 people out of which 40 didn&;t eat fruit salad. From the rest who ate fruit salad, 55 didn&;t develop food poisoning. What is the attack rate?
Attack Rate= No. of new cases of a disease/ Total population at risk * 100 In the given question, No of new cases = 55 Total population at risk= 110-40 = 70 who ate fruit salad. So, AR= 55/70*100 = 78.6% Ref: Parl 25th edition Pgno: 69
46
56
78
50
Epidemiology