Neco 2025 Biology Question 22
Practice objective / multiple choice question 22 from the 2025 Neco Biology examination.
A newly emerging infectious disease has a basic reproduction number \(R_{0}=3.5\). The available vaccine is 80 % effective. Ten percent of the population is already immune due to prior infection. What minimum proportion of the total population must be vaccinated to achieve herd immunity? Give your answer as a percentage rounded to the nearest whole number.
Answer Options
About This Question
This is Neco 2025 Biology Question 22. It is one of the objective questions from the 2025 Neco Biology examination.
Difficulty level: Hard .
Master the Exam!
You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.