Gce Model Questions Vol1 2021 Agricultural Science Question 1
Practice objective / multiple choice question 1 from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
A cattle herd is at risk from a contagious disease with a basic reproduction number of \(R_0 = 2.5\). A vaccine available for the disease has an efficacy of 80 %. What minimum proportion of the herd must be vaccinated to achieve herd immunity, and how many individual animals need to be vaccinated if the herd consists of 200 cattle? Give your answer as the number of animals to vaccinate.
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About This Question
This is Gce Model Questions Vol1 2021 Agricultural Science Question 1. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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