There is a difference in the requirements for K12 and early learning programs regarding MMR immunizations.

K12:

To control the spread of disease, a local health officer may exclude children and staff from schools and child care facilities (WAC 246-110-020). They encourage K12 schools to keep immunization records for staff and volunteers, should they need to be dismissed from school in case of an outbreak. The law does not include language requiring school staff and volunteers to provide documentation of immunity to MMR disease unless they are supervising children in an early learning program.

Early Learning:

Staff and volunteers at child care centers (including ECEAP and Head Start preschools) must provide immunization documentation to their program (Chapter 43.216 RCW). They will need one of the following:

  • An immunization record showing they received the MMR vaccine.
  • Proof of immunity from measles through documentation of lab evidence of antibody titer.
  •  A health care provider’s attestation of the person’s history of measles is sufficient to provide immunity against measles (the provider may consider CDC guidance regarding evidence of immunity, including for those born before 1957).
  •  Written certification, signed by a health care practitioner, that the MMR vaccine is not advisable for the person.

For more information, see the Employee and Volunteer MMR Requirement FAQs.

Outbreak & Exclusion

Exclusion for measles lasts until 21 days have passed since the date of last known possible exposure. This exclusion time may be extended if another case occurs.