Healthcare providers should ask patients about planned travel and vaccinate per ACIP guidelines:
- Infants aged 6 through 11 months of age who will be travelling internationally should receive a dose of MMR before travel, although this dose does not count towards completion of the routine schedule.
- All children and adults ages 12 months and older should receive 2 doses of MMR vaccine separated by at least 28 days, with the first dose administered at age >12 months. For more information see the International Travelers Aged ≥6 Months section of Prevention of Measles, Rubella, Congenital Rubella Syndrome, and Mumps 2013 MMWR.
Measles Immunity During Contact Investigations
The following is considered acceptable evidence of immunity against measles after exposure:
- Documented receipt of two measles-containing vaccines
- Laboratory evidence of immunity or prior infection
Persons born before 1957, persons with only one documented dose of MMR, and unvaccinated persons, if exposed to measles, will be required to have laboratory evidence of immunity or they may be subject to exclusion or quarantine.
Self-reported vaccination or infection does not constitute evidence of immunity.
To determine if a person is immune to measles without documented proof of receipt of MMR doses, collect serum for measles IgG testing.
Measles cases must be reported by telephone immediately to the local health department (Title 17, California Code of Regulations, § 2500).
Los Angeles County DPH Morbidity Central Reporting Unit:
- Call 1-888-397-3993 on weekdays from 8:30 a.m. to 5:00 p.m.
- For after-hours, call 1-213-974-1234 and ask for the physician on call.
Long Beach Health and Human Services:
- Call 1-562-570-4302 on weekdays from 8:00 a.m. to 5:00 p.m.
- For after-hours, call the Duty Officer at 1-562-500-5537.
Pasadena Public Health Department:
- Call 1-626-744-6089 on weekdays from 8:00 a.m. to 5:00 p.m. (note: closed every other Friday)
- For after-hours, call 1-626-744-6043.
- Posters for facility entrances are now available for download from LAC DPH
- For technical assistance, call the LAC DPH Vaccine Preventable Disease Control Program Surveillance Unit at 1-213-351-7800
- For clinicians: View LAC DPH's Measles Fact Sheet and Toolkit
- For parents and patients: View information at LAC DPH's Measles Outbreak page.