[Daily Bell] The 4th Amendment of the United States Constitution unequivocally protects against unreasonable search and seizure:"The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things"
These concepts of essential human liberty precede even the US Constitution by centuries; this is the foundational stuff of the 1215 Magna Carta.
By both the letter and spirit of the law, the US government would need an individual warrant for each person’s private medical records (i.e., vaccination status) that it attempts to inspect at each time it attempts to do so.