Measles Cases Keep Climbing — Here's Why MMR Still Matters
Vaccines

Thursday, April 30, 2026

Measles Cases Keep Climbing — Here's Why MMR Still Matters

What families should know as outbreaks continue across multiple states

The U.S.

has now logged nearly 1,800 measles cases in 2026, with a long-running outbreak along the Utah-Arizona border passing 600 cases.

Almost all sick children have been unvaccinated.

The AAP and CDC both still recommend two MMR doses on the same schedule pediatricians have used for years, and that protection holds up: two doses are about 97% effective at preventing measles.

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Clinic Takeaway

National Infant Immunization Week just wrapped, but the work continues. Use your immunization registry to flag patients overdue for MMR or with a single dose only, and send a brief, reassuring outreach message this week. Consider a triage script that asks about rash, fever, and recent travel before patients enter the waiting room — early identification protects unvaccinated infants and immunocompromised patients in your practice.

Source: AAP Red Book and CDC measles clinical guidance

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