New York Declares Emergency To Address Rising Measles Cases

New York Declares Emergency To Address Rising Measles Cases

Because of rising measles cases, New York’s governor this week declared a State Disaster Emergency, which will remain in effect through November 4, 2026, according to a press release. This is a public-health response measure designed to expand vaccination, testing, surveillance, and outbreak-control capacity. The action specifically extends the pool of eligible individuals who can administer measles-mumps-rubella vaccines and allows nurses to order testing rather than requiring the order to come from a physician or …

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Immune Amnesia From Measles Can Last For 5 Years

Immune Amnesia From Measles Can Last For 5 Years

For a patient with a measles infection, the health effects can last well beyond the acute illness. The measles virus destroys memory B and T cells that help the immune system recognize previously encountered pathogens, producing “immune amnesia,” according to an analysis in CIDRAP. As a result, patients can lose protection acquired through prior infections or vaccination and become susceptible again to bacterial and viral illnesses. Studies suggest measles survivors may lose 11%–73% of their …

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What Is Congenital Measles?

What Is Congenital Measles?

The American Academy of Pediatrics (AAP) released a new document that provides guidance on congenital measles, including its definition, clinical presentation, evaluation and management, infection control, long-term follow-up, and prevention. Organized with frequently asked questions, the document was developed in response to ongoing measles outbreaks and the potential for congenital measles cases in the United States, according to AAP. The clinical information is important because presentations of congenital measles infection are highly variable, ranging from …

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Measles Outbreak On Pace To Surpass Last Year’s High Case Counts

Measles Outbreak On Pace To Surpass Last Year’s High Case Counts

In recent days, the Centers for Disease Control and Prevention (CDC) confirmed 2,318 measles cases were reported in the United States for the year so far—outpacing the 2,289 confirmed measles cases for all of 2025. And just like last year, 93% of cases are among people who were unvaccinated or had unknown vaccine status, and 20% of cases are among children under the age of 5 years. So far, 151 measles cases have resulted in …

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Measles Exposure Sites Include Urgent Cares, Airports, Disneyland

Measles Exposure Sites Include Urgent Cares, Airports, Disneyland

As of February 19, 2026, there were 982 confirmed measles cases reported in the United States for the year so far, according to the Centers for Disease Control and Prevention (CDC)—a high case count for a year that is barely 2 months in. By comparison, there were a total of 2,280 cases through all of 2025. Public health leaders and clinicians are facing 5 new outbreaks this year in at least 26 states.  Health departments …

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Americas Region Loses Measles Elimination Status

Americas Region Loses Measles Elimination Status

This week, Canada lost its measles elimination status, and as a result, the “Americas” region overall no longer has its verified elimination status as designated by the Pan American Health Organization (PAHO). The Americas first gained measles-free status in 2016, lost it 2 years later, and then re-established the elimination status in 2024. As of November 7, 2025, reports show 12,596 confirmed measles cases in 10 of the region’s countries with 28 deaths (23 in …

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Measles Surge Isn’t Behind Us Just Yet

Measles Surge Isn’t Behind Us Just Yet

As of October 8, 2025, there have been a total of 1,563 confirmed measles cases reported in 42 states this year, according to the Centers for Disease Control and Prevention. The largest proportion of cases are among those ages 5-19 years (39%), and 92% of all cases are among unvaccinated people or those with unknown vaccine status. However, experts speaking  to NPR believe the numbers are actually much higher than what has been reported and …

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Measles Cases Keep Climbing, Exceeding Long-Term Records 

Measles Cases Keep Climbing, Exceeding Long-Term Records 

This month, the United States reached a level of more confirmed measles cases for the year than in any time in the past 30 years. 1990 saw an unusual high of 27,808 measles cases reported with a series of outbreaks in large metro areas. However, subsequent improvement in vaccine policies encouraged higher vaccination rates, which helped dramatically reduce cases over the next few years. Cases dropped to 2,126 by 1992, and measles was declared eliminated …

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Some Measles Cases Are Showing Up In Vaccinated Patients 

Some Measles Cases Are Showing Up In Vaccinated Patients 

Among the 1,197 confirmed measles cases in the United States so far this year, about 3% have occurred in people who received 2 doses of the measles, mumps, rubella (MMR) vaccine and 2% in those who received 1 dose, according to an update from the Centers for Disease Control and Prevention (CDC). Now showing up in 35 states, measles cases have been confirmed in 347 people under the age of 5 years, 446 cases in …

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MMR Vaccine Rates Decline In 78% of U.S. Counties

MMR Vaccine Rates Decline In 78% of U.S. Counties

The United States is witnessing a significant decline in vaccination rates for measles, mumps, and rubella (MMR) as reported across more than 2,000 counties, according to a study published in JAMA . Data covering the years 2019 through 2024 show that the county-level mean vaccination rate fell from 93.92% in the pre-pandemic years to 91.26% after the pandemic with 78% of counties reporting declining rates. Only 4 states reported increased rates of MMR vaccination during …

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