Q; Some parents hesitate to immunize their children because they think that vaccines may cause autism, even though the author of the study has withdrawn the paper after charges of scientific fraud were brought against his findings. Vaccines only work if a high enough proportion of the population is vaccinated. Parents who opt not to vaccinate their children are relying on herd immunity–on the fact that others are vaccinating. What do you think about vaccines, are they necessary or should they be optional?
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