2. Consider an outbreak of salmonella in which 28 persons in 18 different households all became ill. If the population of the community was 2,000. One incubation period later, 27 persons in the same households as these "primary" cases developed salmonella. If the 18 households included 106 persons; a. Calculate the secondary attack rate b. Calculate the overall attack rate. Show your COMPLETE solution

Q: biological vector is and a mechanical vec

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