似乎没有发生你想象的流行病大流行么,。这才是真实生活里的自由。选择权。不是你喊得那些口号。
In the United States, opt-outs take one of three forms: medical, in which a vaccine is contraindicated due to a component ingredient allergy or existing medical condition; religious; and personal philosophical opposition. As of 2015, 47 states allow religious exemptions, with some states requiring proof of religious membership. Mississippi, West Virginia and California do not permit religious exemptions.[38] Only 15 states allow personal philosophical opposition to vaccination as a form of exemption; Vermont and California eliminated this exemption in 2015.
https://en.wikipedia.org/wiki/Vaccination_policy#United_States
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