Neco 2020 Agricultural Science Question 39
Practice objective / multiple choice question 39 from the 2020 Neco Agricultural Science examination.
A cattle herd consists of 200 animals. A contagious disease affecting the herd has a basic reproduction number \(R_{0}=3.5\). A vaccine is 80\% effective. Determine the minimum number of animals that must be vaccinated to achieve herd immunity in the herd.
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About This Question
This is Neco 2020 Agricultural Science Question 39. It is one of the objective questions from the 2020 Neco Agricultural Science examination.
Difficulty level: Medium .
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