Gce Model Questions Vol1 2022 Biology Question 24

Practice objective / multiple choice question 24 from the 2022 Gce Model Questions Vol1 Biology examination.

Gce Model Questions Vol1 2022 Biology Objective / Multiple Choice Hard Difficulty
Question 24 GCE_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • objective

A contagious disease has a basic reproduction number \(R_0 = 3.5\). A vaccine available for this disease is 80 % effective. What proportion of the total population must be immunised with this vaccine to achieve herd immunity?

Answer Options

Correct Answer A. ≈ 89 % of the population
B. ≈ 75 % of the population
C. ≈ 80 % of the population
D. ≈ 95 % of the population
Correct Answer
A
Correct Option:
≈ 89 % of the population

About This Question

This is Gce Model Questions Vol1 2022 Biology Question 24. It is one of the objective questions from the 2022 Gce Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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