Herd immunity refers to what concept?

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Multiple Choice

Herd immunity refers to what concept?

Explanation:
Herd immunity is a group-level protective effect: when a large portion of a population is immune, the spread of the disease is slowed or halted, protecting those who are not immune. This happens because with fewer susceptible individuals, an infectious person is less likely to transmit the pathogen to someone else, breaking transmission chains. The best description here emphasizes that the group shows resistance to the disease because the majority are immune, which captures the population-wide impact rather than focusing on individuals. It’s not about individual immunity alone, and it doesn’t require everyone to be immune.

Herd immunity is a group-level protective effect: when a large portion of a population is immune, the spread of the disease is slowed or halted, protecting those who are not immune. This happens because with fewer susceptible individuals, an infectious person is less likely to transmit the pathogen to someone else, breaking transmission chains. The best description here emphasizes that the group shows resistance to the disease because the majority are immune, which captures the population-wide impact rather than focusing on individuals. It’s not about individual immunity alone, and it doesn’t require everyone to be immune.

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