On Thursday the Supreme Court said health care workers covered by Biden’s vaccine mandate must be fully vaccinated by March 15th. This was a 5-4 vote to cover the 24 states that lifted their lower court freezing mandates. 25 other states will only have until February 28th to be fully vaccinated as they did not have a blocking order for the mandate before the Supreme Court’s order on Thursday.
See "Supreme Court lifts blocks on health care worker vaccination mandates", Tierney Sneed, CNN, January 14, 2022