Biology · Human Diseases
Why are non-immunized school-age children often protected from vaccine-preventable diseases such as diphtheria, measles, and polio in a highly vaccinated population?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because such diseases exist exclusively in underdeveloped countries.
- 2Because the majority of the population is immunized, establishing herd immunity.✓
- 3Because these diseases have been completely eradicated globally.
- 4Because they are still protected by active maternal antibodies.
Correct answer
Because the majority of the population is immunized, establishing herd immunity.
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