In any case where a person could file or could have filed a petition for compensation pursuant to Subtitle 2 of Title XXI of the Public Health Services Act of the United States (42 U.S.C. § 300aa-10 et seq.) for the vaccine-related injury or death associated with the administration of a vaccine in the Commonwealth by or under the supervision of a physician licensed to practice medicine in Virginia, no civil action shall lie against such physician, or any person administering such vaccine on behalf of such physician for injury or death resulting from an adverse reaction to such vaccine, except where such injury or death was caused by gross negligence of the physician, his agents or employees, in the administration of such vaccine.