CDC: Kindergarten vaccine exemptions reached record 4.2%
CDC data show a record kindergarten exemption rate, MMR coverage below its community-immunity benchmark and continued measles activity nationwide.
Measles
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Pennsylvania measles deaths put renewed focus on U.S. vaccination gaps
Pennsylvania reported two measles-associated deaths as U.S. cases passed 2025’s total and kindergarten MMR coverage fell to 92.4%.
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Pennsylvania Measles Deaths Highlight Limits of Outbreak Tracking
Pennsylvania’s two measles-associated deaths and 460 cases show why health officials pair confirmed counts with models that adjust for reporting delays.
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Kentucky measles outbreak reaches 25 current cases across seven counties
Kentucky reported 25 current measles cases and 29 total cases in 2026 as of Aug. 27. Here is what exposed residents and families should do next.
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Pennsylvania reports first measles-associated deaths in 35 years as state expands response
Two unvaccinated Lancaster County residents died in measles-associated cases as Pennsylvania expands vaccination clinics, school outreach and guidance statewide.
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Delaware measles outbreak reaches 22 confirmed cases, all in Kent County
Delaware reports 22 confirmed measles cases, all in Kent County. Residents should check MMR records and call ahead before seeking care.
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WHO and UNICEF Report Global Childhood Vaccination Reached 85% for Full DTP Protection in 2025
WHO and UNICEF say childhood vaccination coverage improved modestly in 2025, but global DTP coverage remained below 2019 levels and measles protection stayed far short of the level needed to prevent outbreaks.
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Maricopa County warns of measles exposure at Surprise Walmart
A Maricopa County notice identified a possible measles exposure at the Surprise Walmart on July 12 and gave visitors vaccination, symptom and call-ahead guidance.
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What Des Moines residents should know after Polk County’s July measles exposure notice
Polk County’s 21-day monitoring window ended July 26, and officials said the exposure did not create an ongoing outbreak risk. Here are the symptoms, precautions and vaccination steps for Des Moines residents.
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Sedona wastewater samples detect measles virus, health officials say
Samples collected July 7 and July 9 at Sedona’s wastewater treatment plant tested positive for measles virus. Officials say the finding is a surveillance signal—not a case count, identified patient or confirmed Sedona outbreak.
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U.S. measles cases surpass 2025 total as outbreaks continue
CDC data show 2,371 confirmed U.S. measles cases in 2026, already above 2025’s total, as outbreaks and lower vaccination coverage raise back-to-school concerns.
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Anchorage wastewater detects wild-type measles RNA ahead of school reopening
Alaska officials detected wild-type measles RNA in Anchorage wastewater samples collected July 7, 8, 9 and 14, but said the finding is not a confirmed human case or proof of transmission.
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Anchorage wastewater detects measles-virus RNA, but Alaska reports no confirmed case in alert
Very low levels of measles-virus RNA were found in Anchorage wastewater samples collected July 7–14. Alaska officials say the signal does not confirm a case, transmission or an outbreak.
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Delaware declares statewide measles outbreak after second confirmed case
Delaware declared a statewide measles outbreak July 22, 2026, after confirming a second positive case. Health officials urged unvaccinated residents to seek vaccination.
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Connecticut reports second measles case of 2026 in Hartford County
Connecticut health officials reported a second confirmed measles case of 2026 on June 29, involving a Hartford County resident exposed through an earlier identified case.
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Delaware declares measles outbreak after two additional cases bring reported total to four
Delaware’s Division of Public Health reported two additional positive measles cases on July 22, bringing the statewide reported total to four and prompting renewed vaccination messaging.
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Polk County confirms measles case and lists Des Moines-area exposure sites
Polk County health officials confirmed measles in a vaccinated resident who recently traveled internationally and advised people at listed exposure sites to complete a survey and monitor for symptoms.
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Delaware Declares Measles Outbreak After Cases Rise to Four
Delaware declared a measles outbreak on July 22 after reporting four confirmed cases. Here is what the response changes and what residents should do after exposure.
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Ashtabula County Reports Two Measles Cases, Tracks Potential Exposures
Ashtabula County health officials are tracking potential measles exposures at three locations and urging people to check immunity records and call ahead for care.
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Vancouver-area measles cases reach seven after Salmon Creek clinic exposure
Clark County reports seven measles cases since July 22 and warns unvaccinated people may be at risk after a July 17 Salmon Creek clinic exposure.
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Phoenix measles exposure warning includes Chase Field and South Phoenix IHOP
Maricopa County says people may have been exposed to measles at Chase Field and a South Phoenix IHOP, with monitoring deadlines of Aug. 2 and Aug. 3.
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Lancaster County remains at center of Pennsylvania measles surge
Pennsylvania had 142 measles cases through July 27. Lancaster County accounted for roughly 60%, while officials urged residents to check records and watch symptoms.