Our new employees must show proof of immunity to measles. What is considered acceptable evidence of immunity?
In the ACIP recommendations for Immunization of Healthcare Workers, measles immunity is defined as: a) physician-diagnosed measles; b) laboratory evidence of measles immunity (persons who have an “indeterminate” level of immunity upon testing should be considered nonimmune); or c) appropriate vaccination on or after the first birthday of two doses of live measles vaccine separated by at least 28 days.