Neco 2019 Biology Question 6
Practice objective / multiple choice question 6 from the 2019 Neco Biology examination.
In a community of 10,000 people, a contagious disease has an unknown basic reproduction number \(R_0\). A vaccination programme immunises 60 % of the population with a vaccine whose efficacy is 80 %. After the programme the observed effective reproduction number is \(R_e = 1.2\). Assuming the vaccine reduces susceptibility proportionally, calculate the minimum possible value of \(R_0\) before vaccination. Give your answer to two decimal places.
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About This Question
This is Neco 2019 Biology Question 6. It is one of the objective questions from the 2019 Neco Biology examination.
Difficulty level: Hard .
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