The authority of the States to impose vaccine mandates was established by this US Supreme Court ruling, which is worth reading (ignoring the legal boilerplate). It's 29 pages long.
Nothing important has changed in 116 years - the exact same arguments and counter-arguments are made. One could update the English and publish the summary today.
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JACOBSON v. MASSACHUSETTS. 11
197 U. S. Syllabus. JACOBSON v. MASSACHUSETTS. ERROR TO THE SUPREME COURT OF THE STATE OF MASSA- CHUSETTS. No. 70. Argued December 6, 1904.-Decided February 20, 1905.Favorite quote: "[r]eal liberty for all could not exist under the operation of a principle which recognizes the right of each individual person to use his own [liberty], whether in respect of his person or his property, regardless of the injury that may be done to others."
More background: .
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Joe Gwinn