- MMR (Measles, Mumps, and Rubella)
- Scheduling Vaccines
- Travel Vaccines
- Yellow Fever
When not given on the same day, is the interval between yellow fever and MMR vaccines 4 weeks (28 days) or 30 days? I have seen the yellow fever and live virus vaccine recommendations published both ways.
CDC recommends applying the standard 28-day interval between yellow fever vaccine and other live virus vaccines when they are not administered simultaneously. In the past, a 30-day minimum interval was recommended specifically for yellow fever vaccine, but CDC no longer recommends a different interval for yellow fever vaccine. For details, see CDC’s web section on timing and spacing of immunobiologics: www.cdc.gov/vaccines/hcp/imz-best-practices/timing-spacing-immunobiologics.html#cdc_report_pub_study_section_5-non-simultaneous-administration
Last reviewed:
August 10, 2026