Gce Model Questions Vol1 2017 Biology Question 40

Practice objective / multiple choice question 40 from the 2017 Gce Model Questions Vol1 Biology examination.

Gce Model Questions Vol1 2017 Biology Objective / Multiple Choice Hard Difficulty
Question 40 GCE_MODEL_QUESTIONS_VOL1 • 2017 • BIOLOGY • objective

An infectious disease has a basic reproduction number \(R_{0}=2.5\). A vaccine available for the disease is 80 % effective. Due to public‑health constraints, at most 70 % of the population can be vaccinated. Is it possible to achieve herd immunity in this community? Provide the required vaccination coverage and state whether the 70 % limit is sufficient.

Answer Options

A. No, because 80 % coverage is required but only 70 % is possible
B. Yes, because 70 % coverage is sufficient to achieve herd immunity
Correct Answer C. No, because 75 % coverage is required but only 70 % is possible
D. No, because 75 % coverage is required but only 65 % is possible
Correct Answer
C
Correct Option:
No, because 75 % coverage is required but only 70 % is possible

About This Question

This is Gce Model Questions Vol1 2017 Biology Question 40. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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