Va. Code § 32.1-48: Powers of Commissioner in epidemic

A. Nothing in this article shall preclude the Commissioner from requiring immediate immunization of all persons in case of an epidemic of any disease of public health importance for which a vaccine exists other than a person to whose health the administration of a vaccine would be detrimental as certified in writing by a physician licensed to practice medicine in this Commonwealth.B. In addition, the State Health Commissioner shall hold the powers conferred pursuant to Article 3.02 (§ 32.1-48.05 et seq.) of this chapter to issue orders of quarantine or prepare orders of isolation for a communicable disease of public health threat.1979, c. 711; 2004, cc. 773, 1021.