To help maintain clinic staffing and normal operations in the event of measles transmission in the community, ensure ahead of time that all health care professionals (HCP) have presumptive evidence of immunity to measles, as without proof of immunity, exposed staff will need to be restricted from the workplace through the 21st day after last exposure or until proof of immunity is shown.
- Presumptive evidence of immunity to measles for HCP includes:
- Written documentation of vaccination with two doses of measles virus-containing vaccine (the first dose administered at age ≥12 months; the second dose no earlier than 28 days after the first dose); OR
- laboratory evidence of immunity (measles immunoglobulin G [IgG] in serum; equivocal results are considered negative); OR
- laboratory confirmation of disease; OR
- birth before 1957.
- Consider vaccinating HCP born before 1957 who do not have other evidence of immunity to measles.
- CDC and the Advisory Committee on Immunization Practices (ACIP) maintain recommendations on immunization of HCP for measles.