Neco Model Questions Vol1 2018 Agricultural Science Question 14
Practice objective / multiple choice question 14 from the 2018 Neco Model Questions Vol1 Agricultural Science examination.
In a cattle herd of \(200\) animals, an outbreak of foot‑and‑mouth disease (FMD) has a basic reproduction number \(R_{0}=2.5\). A vaccine available for the disease is \(80\%\) effective. Using the formula \(p_{c}=1-\frac{1}{R_{0}\times E}\) where \(E\) is vaccine effectiveness, determine the minimum proportion of the herd that must be vaccinated to achieve herd immunity. Also state the corresponding number of cattle that need to be vaccinated.
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About This Question
This is Neco Model Questions Vol1 2018 Agricultural Science Question 14. It is one of the objective questions from the 2018 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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