ATLANTA — A panel of U.S. advisers will meet Tuesday to vote on how scarce, initial supplies of a COVID-19 vaccine will be given out once one has been approved. Experts have proposed giving the vaccine to health workers first. High priority also may be given to workers in essential industries, people with certain medical conditions and people age 65 and older. Tuesday’s meeting is for the Advisory Committee on Immunization Practices, a group established by the Centers for Disease Control and Prevention.