Judge Terry A. Doughty in the U.S. District Court Western District of Louisiana ruled in favor of a request from Republican Louisiana Attorney General Jeff Landry to block an emergency regulation issued Nov. 4 by the Centers for Medicare and Medicaid Services that required vaccines for nearly every full-time employee, part-time employee, volunteer, and contractor working at a wide range of healthcare facilities receiving Medicaid or Medicaid funding.

Louisiana was joined in the lawsuit by attorneys general in 13 other states.