In the passage "outbreaks still occur where coverage falls below the level needed for herd immunity", the word coverage refers to
Correct answer: B. the proportion of the population vaccinated
- A. media reporting of the disease
- B. the proportion of the population vaccinated
- C. the area affected by the outbreak
- D. insurance for medical treatment
Explanation
In a vaccination context coverage means the share of people who have been immunised, and the reference to herd immunity confirms it. Media reporting and insurance are ordinary senses of the word that do not fit here. Technical passages often use everyday words in a specialised sense, which is exactly what these questions test.
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Meaning from context requires inferring an unfamiliar word or phrase from surrounding clues, including definitions, examples, contrasts, cause and effect, tone and grammatical role. The intended meaning may differ from a dictionary’s first meaning, so collocation, connotation and the sentence’s overall idea must be considered together.
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