Texas, Oklahoma and New Mexico reported new measles cases this week, with the outbreak increasing for the primary time into central Texas.
Already, the U.S. has extra measles instances this 12 months than in all of 2024, the U.S. Facilities for Illness Management and Prevention has stated. Other states with outbreaks — outlined as three or extra instances — embody New Mexico, Kansas, Ohio and Oklahoma. Since February, two unvaccinated individuals have died from measles-related causes.
The multi-state outbreak confirms well being specialists’ fears that the virus will take maintain in different U.S. communities with low vaccination charges and that the unfold could stretch on for a year. The World Well being Group stated final week that instances in Mexico are linked to the Texas outbreak.

Measles is attributable to a extremely contagious virus that’s airborne and spreads simply when an contaminated individual breathes, sneezes or coughs. It’s preventable by way of vaccines, and has been thought-about eradicated from the U.S. since 2000.
Right here’s what else you need to know about measles in the U.S.
What number of measles instances are there in Texas and New Mexico?
Texas’ outbreak started two months in the past. State well being officers stated Tuesday there have been 22 new instances of measles since Friday, bringing the overall to 422 across 19 counties — most in West Texas. Erath and Brown counties, within the central a part of the state, logged their first instances. Forty-two individuals have been hospitalized for the reason that outbreak started.
New Mexico introduced 4 new instances Tuesday, bringing the state’s complete to 48. New Mexico well being officers say the instances are linked to Texas’ outbreak primarily based on genetic testing. Most are in Lea County, the place two individuals have been hospitalized, and two are in Eddy County.
A school-age child died of measles in Texas in late February, and New Mexico reported its first measles-related death in an adult on March 6.
What number of instances are there in Kansas?
Kansas has 24 instances in six counties within the southwest a part of the state as of Wednesday. Kiowa and Stevens counties have six instances every, whereas Grant, Morton, Haskell and Grey counties have 5 or fewer.
The state’s first reported case, recognized in Stevens County on March 13, is linked to the Texas and New Mexico outbreaks primarily based on genetic testing, a state well being division spokesperson stated. However well being officers haven’t decided how the individual was uncovered.
What number of instances are there in Oklahoma?
Oklahoma logged one new measles case Tuesday — for a complete of eight confirmed and two possible instances. The primary two possible instances had been “related” with the West Texas and New Mexico outbreaks, the state well being division stated.
A state well being division spokesperson stated measles exposures had been confirmed in Tulsa and Rogers counties, however wouldn’t say which counties had instances.
What number of instances are there in Ohio?
Ohio reported one new measles case Thursday in west-central Allen County. Final week, there have been 10 in Ashtabula County within the northeast nook of the state. The primary case was in an unvaccinated grownup who had interacted with somebody who had traveled internationally.
In central Ohio, Knox County officers reported two new measles instances in worldwide guests, for 3 instances in worldwide guests complete. These instances will not be included within the state’s official depend becuase they don’t seem to be in Ohio residents. A measles outbreak in central Ohio sickened 85 in 2022.
The place else is measles exhibiting up within the U.S.?
Measles instances even have been reported in Alaska, California, Colorado, Florida, Georgia, Kentucky, Maryland, Michigan, Minnesota, New Jersey, New York, Pennsylvania, Rhode Island, Tennessee, Vermont, and Washington.
The U.S. Facilities for Illness Management and Prevention defines an outbreak as three or extra associated instances. The company counted five clusters that certified as outbreaks in 2025 as of Friday.
Within the U.S., instances and outbreaks are usually traced to someone who caught the disease abroad. It could possibly then unfold, particularly in communities with low vaccination charges. In 2019, the U.S. noticed 1,274 instances and nearly misplaced its standing of getting eradicated measles.
Do you want an MMR booster?
One of the simplest ways to keep away from measles is to get the measles, mumps and rubella (MMR) vaccine. The primary shot is really useful for youngsters between 12 and 15 months previous and the second between 4 and 6 years previous.
Folks at excessive threat for an infection who received the pictures a few years in the past could need to think about getting a booster in the event that they stay in an space with an outbreak, stated Scott Weaver with the International Virus Community, a global coalition. These could embody relations dwelling with somebody who has measles or these particularly weak to respiratory ailments due to underlying medical situations.
Adults with “presumptive proof of immunity” usually don’t want measles pictures now, the CDC stated. Standards embody written documentation of ample vaccination earlier in life, lab affirmation of previous an infection or being born earlier than 1957, when most individuals had been more likely to be contaminated naturally.
A physician can order a lab take a look at known as an MMR titer to examine your ranges of measles antibodies, however well being specialists don’t all the time advocate this route and insurance coverage protection can range.
Getting one other MMR shot is innocent if there are issues about waning immunity, the CDC says.
Individuals who have documentation of receiving a stay measles vaccine within the Sixties don’t should be revaccinated, however individuals who had been immunized earlier than 1968 with an ineffective measles vaccine produced from “killed” virus must be revaccinated with at the least one dose, the company stated. That additionally contains individuals who don’t know which sort they received.
What are the signs of measles?
Measles first infects the respiratory tract, then spreads all through the physique, inflicting a excessive fever, runny nostril, cough, pink, watery eyes and a rash.
The rash usually seems three to 5 days after the primary signs, starting as flat pink spots on the face after which spreading downward to the neck, trunk, arms, legs and ft. When the rash seems, the fever could spike over 104 levels Fahrenheit, in response to the CDC.
Most children will get well from measles, however an infection can result in dangerous complications akin to pneumonia, blindness, mind swelling and loss of life.
How are you going to deal with measles?
There’s no particular therapy for measles, so medical doctors usually attempt to alleviate signs, forestall problems and preserve sufferers comfy.
Why do vaccination charges matter?
In communities with excessive vaccination charges — above 95% — ailments like measles have a tougher time spreading by way of communities. That is known as “herd immunity.”
However childhood vaccination charges have declined nationwide for the reason that pandemic and extra mother and father are claiming non secular or private conscience waivers to exempt their children from required pictures.
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The U.S. noticed a rise in measles cases in 2024, together with an outbreak in Chicago that sickened more than 60.