MMRV Use May Reveal Vaccine Access Gaps - Report - MDSpire

MMRV Use May Reveal Vaccine Access Gaps

  • By

  • Andrea Surnit

  • July 20, 2026

  • 4 min

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Clinical Report: MMRV Use May Reveal Vaccine Access Gaps

Overview

A study of 213,445 children in King County, Washington, found that those receiving the MMRV vaccine were more likely to utilize safety-net clinics and participate in the Vaccines for Children program.

Background

This study provides insights into the demographics of children receiving MMRV and the characteristics associated with vaccine selection.

Data Highlights

Vaccine TypePercentage
MMR + VAR64%
MMR18%
MMRV15%
VAR4%

Key Findings

  • 15% of children received MMRV as their first measles-containing vaccine.
  • Children receiving MMRV were more likely to be eligible for the Vaccines for Children program.
  • 95% of children completed both measles-containing and varicella-containing vaccine recommendations before age 4.
  • MMRV use remained stable throughout the study period.
  • Reduced access to MMRV could disproportionately affect VFC-eligible children.

Clinical Implications

The findings highlight demographic factors influencing vaccine access.

Conclusion

The study highlights the need for monitoring vaccine access and utilization patterns.

Related Resources & Content

  1. Fagalde MS, et al., JAMA Network Open, 2023 -- MMRV Use May Reveal Vaccine Access Gaps
  2. Open Forum Infectious Diseases — Limited Vaccination Rates and Health Disparities for Respiratory Syncytial Virus Among Veterans in the United States
  3. Drug Safety — Real-Time Benefit-Risk Assessment of Vaccines Through an Interactive Dashboard: A Methodological Framework from the ADVANCE Initiative
  4. American Journal of Epidemiology — Improving Evidence Collection on COVID-19 Vaccine Efficacy Through Tokenized Immunization Data Registries
  5. Measles Vaccine Recommendations | Measles (Rubeola) | CDC
  6. Measles, Mumps, Rubella, Varicella (MMRV) Vaccine Safety | Vaccine Safety | CDC
  7. Vaccines for Children (VFC) Program Eligibility | VFC Program | CDC

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