Neco 2017 Agricultural Science Question 46
Practice objective / multiple choice question 46 from the 2017 Neco Agricultural Science examination.
A herd of 120 cattle is at risk of foot‑and‑mouth disease. The disease has a basic reproduction number \(R_{0}=2.5\). A vaccine available is 80\% effective. Assuming homogeneous mixing, the proportion of the herd that must be immune to stop transmission is given by \(p_{c}=1-\frac{1}{R_{0}}\). Taking vaccine efficacy into account, the required vaccination coverage \(p_{v}\) satisfies \(p_{v}\times0.80=p_{c}\). What is the minimum number of cattle that must be vaccinated?
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About This Question
This is Neco 2017 Agricultural Science Question 46. It is one of the objective questions from the 2017 Neco Agricultural Science examination.
Difficulty level: Medium .
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