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The U.S. now has more than double the number of 

 reporting another large jump in cases and hospitalizations on Friday.

 — defined as three or more cases — include New Mexico, 

, Ohio and Oklahoma. The virus has been spreading in undervaccinated communities, and since February, two unvaccinated people have died from measles-related causes.

The multi-state outbreak confirms health experts' fears that the virus will take hold in other U.S. communities with low vaccination rates and that the spread 

. The World Health Organization said last week that cases in 

 is caused by a highly contagious virus that's airborne and spreads easily when an infected person breathes, sneezes or coughs. It is preventable through vaccines, and has been considered eliminated from the U.S. since 2000.

How many measles cases are there in Texas and New Mexico?

Texas' outbreak began more than two months ago. State health officials said Friday there were 59 new cases of measles since Tuesday, bringing the total to 

 — most of them in West Texas. The state also logged 14 new hospitalizations, for a total of 56 throughout the outbreak.

More than 65% of Texas' cases are in Gaines County, population 22,892, where the virus stated spreading in a close-knit, undervaccinated Mennonite community. The county now has logged 315 cases since late January — just over 1% of the county's residents.

New Mexico announced six new cases Friday, bringing the state’s total to 54. New Mexico health officials say the cases are linked to Texas' outbreak based on genetic testing. Most are in Lea County, where two people have been hospitalized, and two are in Eddy County.

school-age child died of measles in Texas

 in late February, and New Mexico reported its first 

Kansas has 24 cases in six counties in the southwest part of the state as of Wednesday. Kiowa and Stevens counties have six cases each, while Grant, Morton, Haskell and Gray counties have five or fewer.

The state's first reported case, identified in Stevens County on March 13, is linked to the Texas and New Mexico outbreaks based on genetic testing, a state health department spokesperson said. But health officials have not determined how the person was exposed.

Cases in Oklahoma remained steady Friday: eight confirmed and two probable cases. The first two probable cases were “associated” with the West Texas and New Mexico outbreaks, the state health department said.

A state health department spokesperson said measles exposures were confirmed in Tulsa and Rogers counties, but wouldn't say which counties had cases.

Ohio reported one new measles case Thursday in west-central Allen County. Last week, there were 10 in Ashtabula County in the northeast corner of the state. The first case was in an unvaccinated adult who had interacted with someone who had traveled internationally.

In central Ohio, Knox County officials reported two new measles cases in international visitors, for three cases in international visitors total. Those cases are not included in the state's official count because they are not in Ohio residents. A measles outbreak in central Ohio sickened 85 in 2022.

Where else is measles showing up in the U.S.?

Measles cases also 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. Centers for Disease Control and Prevention defines an outbreak as three or more related cases. The agency counted 

 that qualified as outbreaks in 2025 as of Friday.

In the U.S., cases and outbreaks are generally traced to 

. It can then spread, especially in communities with low vaccination rates. In 2019, the U.S. saw 1,274 cases and almost lost its status of having eliminated measles. So far in 2025, the CDC's count is 607.

The best way to avoid measles is to get the 

 (MMR) vaccine. The first shot is recommended for children between 12 and 15 months old and the second between 4 and 6 years old.

People at high risk for infection who got the shots many years ago may want to consider getting a booster if they live in an area with an outbreak, said Scott Weaver with the Global Virus Network, an international coalition. Those may include family members living with someone who has measles or those especially vulnerable to respiratory diseases because of underlying medical conditions.

Adults with “presumptive evidence of immunity” generally don’t need measles shots now, the CDC said. Criteria include written documentation of adequate vaccination earlier in life, lab confirmation of past infection or being born before 1957, when most people were likely to be infected naturally.

A doctor can order a lab test called an MMR titer to check your levels of measles antibodies, but health experts don't always recommend this route and insurance coverage can vary.

Getting another MMR shot is harmless if there are concerns about waning immunity, the CDC says.

People who have documentation of receiving a live measles vaccine in the 1960s don’t need to be revaccinated, but people who were immunized before 1968 with an ineffective measles vaccine made from “killed” virus should be revaccinated with at least one dose, the agency said. That also includes people who don’t know which type they got.

Measles first infects the respiratory tract, then spreads throughout the body, causing a high fever, runny nose, cough, red, watery eyes and a rash.

The rash generally appears three to five days after the first symptoms, beginning as flat red spots on the face and then spreading downward to the neck, trunk, arms, legs and feet. When the rash appears, the fever may spike over 104 degrees Fahrenheit, according to the CDC.

Most kids will recover from measles, but infection can lead to 

 such as pneumonia, blindness, brain swelling and death.

There’s no specific treatment for measles, so doctors generally try to alleviate symptoms, prevent complications and keep patients comfortable.

In communities with high vaccination rates — above 95% — diseases like measles have a harder time spreading through communities. This is called “herd immunity.”

But childhood vaccination rates have declined nationwide since the pandemic and more parents are claiming religious or personal conscience waivers to exempt their kids from required shots.

The Associated Press

Author

The U.S. now has more than doubled the total number of measles cases in 2024. Texas, New Mexico, Ohio, Kansas and Oklahoma all have active measles outbreaks.

U.S. has twice as many measles cases so far this year than in all of 2024

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