United States faces major measles surge with 4,588 cases

measles outbreak CDC vaccination rates public health emergency Pennsylvania

The United States is experiencing a significant measles resurgence, with 4,588 confirmed cases recorded in 2026. This figure is more than double the total from 2025. The Centers for Disease Control and Prevention (CDC) reports that at least 43 separate outbreaks are currently occurring across the country.

Pennsylvania is among the hardest-hit regions, reporting 1,338 cases and at least six deaths, including two infants. Other states, such as South Carolina and Utah, have also surpassed 500 cases. In response to the rising numbers, New York Governor Kathy Hochul has declared a state disaster emergency to bolster vaccination efforts.

Health officials attribute the surge to declining vaccination rates. Kindergarten vaccination coverage has dropped from 95.2% in 2019-2020 to 92.4% during the 2025-2026 school year. The CDC noted that 96% of confirmed cases involve individuals who are unvaccinated or have an unknown vaccination status. The World Health Organization is scheduled to review the United States' measles elimination status in November 2026.

Entities

Brazil · Centers for Disease Control and Prevention · Kathy Hochul · Ministry of Health · Pennsylvania · Pennsylvania Health Department · South Carolina · United States · Utah · World Health Organization

Claims

What the coverage asserts, and how many sources carry each claim.

[○ 1 SOURCE] Brazil confirmed 61 measles cases as of October 19, 2026. omatogrosso.com
[● 2 SOURCES] Brazil's national coverage for the second dose of the MMR vaccine is below 80%. omatogrosso.com · radiosampaio.com.br
[● 6 SOURCES] The US measles case count in 2026 is more than double the total from 2025. br.paipee.com · udaipurkiran.com · www.metropoles.com · omatogrosso.com · www.world-today-news.com · +1 more
[● 3 SOURCES] At least 43 separate measles outbreaks are occurring in the United States. br.paipee.com · udaipurkiran.com · www.world-today-news.com
[○ 1 SOURCE] 96% of confirmed US measles cases involve unvaccinated or unknown vaccination status individuals. udaipurkiran.com
[● 4 SOURCES] The United States has recorded 4,588 measles cases in 2026. br.paipee.com · udaipurkiran.com · www.world-today-news.com · www.metropoles.com
[● 5 SOURCES] Pennsylvania has reported over 1,300 measles cases in 2026. br.paipee.com · udaipurkiran.com · www.world-today-news.com · www.metropoles.com · disa.org
[● 2 SOURCES] No Brazilian state reached the 95% vaccination target for the MMR vaccine in 2026. omatogrosso.com · radiosampaio.com.br
[○ 1 SOURCE] Kindergarten vaccination coverage decreased from 95.2% in 2019-2020 to 92.4% in 2025-2026. udaipurkiran.com
[○ 1 SOURCE] The World Health Organization is scheduled to review the US measles elimination status in November 2026. www.world-today-news.com
[○ 1 SOURCE] New York Governor Kathy Hochul declared a state disaster emergency due to rising measles cases. udaipurkiran.com
[○ 1 SOURCE] Kindergarten vaccination rates fell from 95.2% in 2019-2020 to 92.4% during the 2025-2026 school year. udaipurkiran.com