One reasoning like many newspapers would say is that the un-vaccinated children would endanger those vaccinated children.
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Vaccine-wary parents spark public health worry
More opt out for fear of reactions, but do they endanger everyone else?
read here
I am wondering why those who have received vaccine should fear that they will get diseases from those who did not get vaccinated. If the vaccine is not preventive why should they bother to get it in the first place.
Vaccine: the best way to make money!!!!!!!!!!!!!!!!