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© 2026 Developments Today. All rights reserved.

measles Articles | Developments Today

Pittsburgh's kindergartners fall below the measles safety threshold, testing the city's vaccine legacy

Pittsburgh Measles Outbreak Tests a City Built on Vaccine History

Pennsylvania confirmed 693 measles cases across 38 counties as of Sept. 14, 2026, with 133 hospitalizations and four deaths among unvaccinated residents.
The state recorded only 16 measles cases in all of 2025, underscoring the scale of the 2026 surge.
Allegheny County's first outbreak-linked case came in August 2026, with an exposure warning at UPMC Children's Hospital's emergency department and two cases diagnosed Aug. 27.
Pittsburgh kindergarten vaccination coverage has fallen below the threshold needed to prevent sustained measles transmission.

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DT Editorial Team·Sep 20, 2026·via medicalxpress.com

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Pennsylvania officials report state's third death involving measles

Pennsylvania Confirms Third Measles-Related Death of 2026

Pennsylvania officials reported the state's third measles-related death this year after a woman died from complications tied to the virus.
The case was reported by STAT News on September 14, 2026; officials have not released details such as the patient's age or vaccination status.
Measles is one of the most contagious airborne viruses and can linger in a room for up to two hours after an infected person leaves.
Serious complications include pneumonia, encephalitis, severe dehydration, and the rare, fatal brain condition SSPE.

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DT Editorial Team·Sep 14, 2026·via statnews.com

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Huge facade for CDC headquarters against a beautiful sky.

CDC Excludes Pennsylvania Measles Deaths From 2026 Count

The CDC removed two Pennsylvania-reported measles deaths from its 2026 national count after briefly listing them.
The move is unusual because states traditionally determine measles cases and deaths for federal surveillance.
The dispute is unfolding amid a politicized fight over vaccines and federal public-health credibility.

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DT Editorial Team·Sep 1, 2026·via arstechnica.com

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Illustration of measles virus infection showing giant multinucleated cells seen during microscopy of biopsy specimens, known as Warthin-Finkeldey giant cells.

Pennsylvania measles deaths signal a worsening U.S. outbreak

Pennsylvania reported two measles deaths in Lancaster County, the first U.S. measles fatalities of 2026.
Both people were unvaccinated, and the state said these were its first measles deaths in 35 years.
Pennsylvania has recorded 393 cases in 28 counties, while the U.S. total has reached 2,813 in 2026.
Falling kindergarten vaccination rates and rising exemptions are increasing the risk of sustained domestic transmission.

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DT Editorial Team·Aug 26, 2026·via livescience.com

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Multi‑scale modelling shows that measles transmission at the school level in the United States crossed the epidemic threshold after 2022–23, a shift not detectable by county‑ or district‑level surveillance. (via x.com)

Measles School Transmission Evaded County Surveillance, Nationwide Study Finds

Nationwide analysis of measles vaccination records from more than 50,000 US schools
County surveillance failed to detect transmission at epidemic thresholds
School-level data may reveal hidden measles transmission risks
Recommendations include integrating school vaccination data into public health monitoring

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DT Editorial Team·Aug 22, 2026·via nature.com

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The hidden map of measles risk: why zooming in changed everything | Research Communities by Springer Nature (via communities.springernature.com)

Measles Resurgence: School-Level Transmission Crosses Epidemic Threshold in the US

Multiscale modeling shows school-level measles transmission crossed epidemic threshold in US.
Study covers 2013-2025, highlighting changing transmission dynamics.
Vaccination gaps are primary driver of sustained transmission.
Targeted interventions needed in high-risk areas.

DE

DT Editorial Team·Aug 18, 2026·via nature.com

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1.7 million Australians are unprotected against measles

Measles Immunity Gap: 1.7 Million Australians at Risk, Study Finds

1.7 million Australians (6.7%) were susceptible to measles in 2019.
Overall immunity was 93.3%, below the 95% herd immunity threshold.
Vaccination rates have declined since the pandemic, widening immunity gaps.
Measles cases in Australia rose sharply from single digits in 2022 to 181 in 2025.

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DT Editorial Team·Aug 18, 2026·via medicalxpress.com

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US vaccination rates fall again as exemptions continue to rise, CDC data shows

US Kindergarten Vaccination Rates Decline as Exemptions Reach Record High

CDC data shows kindergarten vaccination rates fell again in 2025-2026, with MMR at 92.4% and DTaP at 92.0%.
Nonmedical exemptions rose to 4%, up from 3.2% the previous year, while medical exemptions stayed at 0.2%.
Only 10 states met the 95% MMR coverage threshold.
The CDC published the data without a full report, drawing criticism from public health experts.

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DT Editorial Team·Aug 18, 2026·via arstechnica.com

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A new antiviral could stop measles before an outbreak takes off

Experimental antiviral shows potential to curb measles outbreaks

An experimental oral antiviral blocked airborne and close-contact spread of a measles-like virus in ferrets.
The drug candidate, GHP-88310, also reduced symptoms and shortened the period of contagiousness in infected animals.
Researchers say the approach could eventually complement ring vaccination during outbreaks, though the findings are still preclinical.

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DT Editorial Team·Jul 24, 2026·via sciencedaily.com

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Experimental once-daily antiviral shows promise against measles and parainfluenza

Researchers identified oral clinical candidate GHP-88310 for orthoparamyxovirus infections.
The study reports efficacy in rodent and non-rodent animal models.
Potential targets include parainfluenzaviruses and measles virus.

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DT Editorial Team·May 22, 2026·via medicalxpress.com

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U.S. Measles Elimination Status Comes Under Pressure as Outbreaks Reach 45 States

A Lancet analysis says the U.S. has missed four of the CDC’s seven measles-elimination indicators.
Researchers report outbreaks that began in Texas in January 2025 have spread to 45 states.
Most recent cases were linked to domestic transmission rather than importations from abroad.

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DT Editorial Team·May 1, 2026·via medicalxpress.com

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Emergency Room Survey Finds Measles Knowledge Gaps and Vaccine Hesitancy Across the US

The study surveyed 2,459 adult patients across ten US emergency departments.
Many respondents were unsure of their MMR vaccination status or reported not receiving the vaccine.
Under-vaccination was associated with race, language, insurance status, and access to primary care.

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DT Editorial Team·Apr 18, 2026·via medicalxpress.com

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Allegheny County’s Measles Protection Is Eroding as Kindergarten Coverage Slips

Medical Xpress says herd immunity for measles is absent in one in three kindergarten classrooms in Allegheny County.
The report cites data obtained by The Washington Post in January 2026.
The trend is framed as a warning sign even before a major local outbreak occurs.

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DT Editorial Team·Apr 13, 2026·via medicalxpress.com

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Bangladesh launches emergency measles-rubella vaccinations after deadly child outbreak

Bangladesh is conducting emergency measles-rubella vaccinations.
The outbreak has killed more than 100 children in less than a month.
Authorities are trying to contain ongoing transmission.

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DT Editorial Team·Apr 7, 2026·via medicalxpress.com

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A 1% Drop in Measles Vaccination Could Cause 17,000 Annual Cases

1% annual MMR decline could trigger 17,000 cases and 36 deaths yearly
Measles requires 93-95% vaccination for herd immunity
Several U.S. states already below 90% kindergarten MMR coverage
Geographic clustering of unvaccinated populations amplifies outbreak risk

DE

DT Editorial Team·Mar 10, 2026·4 min read·via medicalxpress.com

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Measles cases are rising. Other vaccine-preventable infections could be next.

Measles Cases Are Surging Across the U.S., and Experts Warn Other Vaccine-Preventable Diseases Could Follow

982 confirmed measles cases across nearly half of U.S. states in 2026, all linked to unvaccinated individuals
Measles requires 95% population immunity for herd protection, making it the first disease to break through when vaccination rates drop
Mumps, hepatitis B, pertussis, and varicella could follow as the same declining vaccination trends affect multiple diseases
Two doses of MMR vaccine are 97% effective, making every current case entirely preventable
The U.S. may lose its measles elimination status, reversing a public health achievement that stood since 2000

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DT Editorial Team·Feb 21, 2026·7 min read·via technologyreview.com

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