The zone of privacy is civil liberty constitutionally protected in the Bill of Rights first recognized by the U.S. Supreme Court in Griswold v. Connecticut (1965) when it determined that the government can’t restrict the sale and use of contraceptives, invalidating an 1879 law that the court ruled was a violation of “marital privacy."
https://home.frankspeech.com/article/north-carolina-door-door-vaccine-outreach-violating-zone-privacy-advocacy-group-says