Avillage has total of 100 under five children. the coverage with measles vaccine in this age...
Avillage has total of 100 under five children. the coverage with measles vaccine in this age group is 60%. following the occurrence of ameasles case in achild after avisit outside 26 children developed measles. the secondary attack rate of measles is:-
Homework Answers
Ans) 66%
Total No. of children = 100
No. of immunized = 60
No. of un-immunized = 40
Primary case = 1 ( case in achild after avisit outside 26 children developed measles. )
secondary attack rate = 26/(40-1) = 26/39 x 100 = 66%
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