noun
a reluctance or refusal to be vaccinated or to have one's children vaccinated
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Vaccine hesitancy refers to the reluctance or refusal to vaccinate despite the availability of vaccines.
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Some people have vaccine hesitancy because they are unsure about the safety of vaccines.
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There's a lot of talk about vaccine hesitancy going around these days.
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Overcoming vaccine hesitancy is like breaking down a wall of doubt and fear.