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Measles Outbreak Surges Along Utah-Arizona Border, Over 100 Cases

10/24/2025

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Summary

Story summary

A measles outbreak is underway along the Utah-Arizona border, with more than 100 cases since August.
Most cases are among unvaccinated individuals, concentrated in Colorado City, Arizona, and Hildale, Utah.
The outbreak has spread to nearby Hurricane and St. George due to vaccination rates below the 95% herd immunity threshold.
Nationwide, measles cases have risen to 1,618 this year, highest in 33 years, as vaccination exemptions among children rise post-pandemic.

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Story summary

A measles outbreak is underway along the Utah-Arizona border, with more than 100 cases since August.
Most cases are among unvaccinated individuals, concentrated in Colorado City, Arizona, and Hildale, Utah.
The outbreak has spread to nearby Hurricane and St. George due to vaccination rates below the 95% herd immunity threshold.
Nationwide, measles cases have risen to 1,618 this year, highest in 33 years, as vaccination exemptions among children rise post-pandemic.