Rising U.S. Measles Cases Raise Global Concerns Over CDC Transparency
WHO:
The Guardian - The West Coast Health Alliance, whose letter was signed by health officials in California, Hawaii, Oregon, and Washington, asked CDC director Erica Schwartz to reconsider the denial of a measles-test validation request.
The Guardian - Emily Hilliard, an HHS spokesperson, said the CDC was “prioritizing emerging technologies” and ensuring state and local health departments had support for measles detection and outbreak response.
The Guardian - Benjamin Bradley, assistant professor of pathology at the University of Utah and ARUP Laboratories’ medical director of virology, discussed the benefits of high-throughput testing.
Al Jazeera - Matt Ferrari, director of Pennsylvania State University’s Center for Infectious Disease Dynamics, said the United States had “the luxury to forget” measles was a serious problem after successful efforts to eliminate it.
Al Jazeera - New York Governor Kathy Hochul declared a state disaster emergency in response to rising measles cases in rural areas and said, “No one should get seriously ill or die from a vaccine-preventable disease.”
Al Jazeera - Joshua Good, principal of Ephrata Mennonite School in Lancaster County, worked with state officials on a pop-up vaccination clinic and described vaccine scepticism in the Mennonite community.
Al Jazeera - Jennifer Nuzzo, director of Brown University’s Pandemic Center, said public health agencies should build trust before emergencies and treat communities as resources, not as targets of blame or shame.
Al Jazeera - Daniel Salas, executive manager of the Pan American Health Organization’s Special Program for Comprehensive Immunisation, said Mexico and Bolivia could also potentially lose measles elimination status.
Al Jazeera - Robert F Kennedy Jr, US Health and Human Services secretary, defended the US response, saying, “We’re doing a better job than any country in the world at controlling the measles outbreak.”
The Guardian - The CDC, HHS, National Center for Health Statistics, and National Notifiable Diseases Surveillance System are involved in reporting measles deaths. Experts quoted include Dorit Reiss, Lindsay Wiley, Debra Houry, and Paul Offit.
WHAT:
The Guardian - California and Washington requested CDC validation of a high-volume measles test; after a two-month wait, the CDC denied the request, citing “other competing priorities.”
The Guardian - The West Coast Health Alliance asked the CDC to validate a measles assay for the Hologic Panther Fusion and publish the protocol, and to develop testing protocols for other high-priority pathogens.
The Guardian - Public health laboratories currently rely on lower-volume measles tests, including individual PCR tests; no high-throughput measles test has CDC validation.
The Guardian - Texas state laboratories developed a high-throughput measles test during the West Texas outbreak, but have not distributed or published its protocol. ARUP Laboratories published a measles assay in the *Journal of Clinical Microbiology* in December.
The Guardian - The Hologic Panther Fusion PCR platform can process up to 500 tests in eight hours.
The Guardian - One measles patient can infect 12 to 18 unvaccinated people; the virus can remain airborne for two hours, and vaccination within 72 hours of exposure can prevent infection.
Al Jazeera - The US is experiencing its largest measles outbreak since the disease was declared eliminated in 2000; the CDC announced the country’s third measles death of the year.
Al Jazeera - Pennsylvania recorded more than 1,200 cases and over 240 hospitalisations across 42 counties. State and federal officials disagreed over how measles-associated deaths should be classified.
Al Jazeera - US kindergarten vaccination coverage fell from 95.2% in the 2019–2020 school year to 92.4% in the 2025–2026 school year.
The Guardian - The CDC dashboard showed three measles deaths and 4,410 confirmed cases, an 8% increase in one week and nearly twice the previous year’s count. Pennsylvania had reported six deaths, including five confirmed; the latest case remained under investigation.
The Guardian - The CDC did not identify the state where the third death on its dashboard occurred. Its dashboard listed three deaths despite Pennsylvania reporting five confirmed deaths.
Al Jazeera - Canada became the first country in the continental Americas to lose measles elimination status after an outbreak linked genetically to cases in US Mennonite communities.
WHERE:
Al Jazeera - Pennsylvania’s Lancaster County, including Ephrata Mennonite School, was affected; two unvaccinated people died there, and two students at the school contracted measles.
The Guardian - The death-count reporting dispute involved Pennsylvania; a 39-year-old woman in Franklin County died of an acute cardiac event described as a rare measles complication.
WHEN:
Al Jazeera - The Americas eliminated endemic measles transmission in 2016. Canada’s outbreak began in 2024; Pennsylvania sought CDC emergency support in September, and Hochul declared an emergency on October 5.
The Guardian - The CDC switched from NNDSS to NCHS reporting in September. HHS cited privacy restrictions in explaining why it did not disclose the state associated with the third death.
WHY:
The Guardian - The West Coast Health Alliance said high-throughput testing would improve outbreak response and preparedness for pathogens including Ebola and hantavirus; without that capacity, a large regional outbreak could impair diagnostic testing, patient care, and public health investigations.
Al Jazeera - Experts linked continued spread to declining vaccination coverage, vaccine scepticism, gaps in healthcare access, and inadequate early detection and response.
The Guardian - CDC’s spokesperson cited privacy laws and legal restrictions; experts questioned whether state-level information could identify the deceased and said the reporting change reduced transparency.
HOW:
The Guardian - High-throughput tests process many samples at once and can make testing faster and easier than manual methods, enabling quicker identification and isolation of patients, contact tracing, and vaccination offers to exposed people.
Al Jazeera - Salas said authorities should investigate suspected measles cases and begin response measures within the first three days, without waiting for laboratory confirmation; delays of a week or more can allow spread.
Al Jazeera - Pennsylvania officials worked with community leaders, provided adapted communication materials, identified at-risk families, and organised a school vaccination clinic.
The Guardian - The CDC changed its reporting system from NNDSS, which usually reports deaths quickly and identifies the state, to NCHS, which generally does not identify locations when only a few deaths have occurred.
(UPDATED October 23, 2026 03:17 UTC)
The United States is facing its largest measles outbreak since the disease was declared eliminated, with 4,410 confirmed cases and three deaths on the CDC dashboard. Pennsylvania reports more than 1,200 cases and five confirmed deaths, exposing a dispute with federal officials over how deaths are counted and reported. Health officials in California, Hawaii, Oregon and Washington are urging the CDC to reconsider its rejection of a high-volume measles test. The test could process up to 500 samples in eight hours, helping identify cases, trace contacts and offer vaccination to people exposed. Current public health labs rely on lower-volume tests, while the CDC says it is prioritizing other needs. Falling kindergarten vaccination coverage and vaccine scepticism are contributing to the spread. In Pennsylvania, officials have worked with community leaders to organise a school vaccination clinic. Experts say outbreak response should begin quickly, even before laboratory confirmation.
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(UPDATED October 23, 2026 02:19 UTC)
The United States is facing its largest measles outbreak since the disease was declared eliminated in 2000, with 4,410 confirmed cases and three deaths on the CDC dashboard. Pennsylvania has reported more than 1,200 cases and six deaths, five confirmed, but the CDC has not identified the state associated with its third recorded death. That gap reflects a reporting change: the CDC now uses a system that generally withholds locations when death counts are small. Experts say falling vaccination rates, vaccine scepticism and healthcare access gaps are helping measles spread. Kindergarten vaccination coverage dropped from 95.2 percent in the 2019–2020 school year to 92.4 percent in 2025–2026. In Lancaster County, officials and community leaders have arranged a school vaccination clinic. New York Governor Kathy Hochul has declared a disaster emergency. Canada has lost its measles elimination status, and experts warn Mexico and Bolivia could also be at risk.