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Texas health officials confirmed 20 more cases of 

 in its nearly 3-month-old outbreak Tuesday, alongside five new cases in New Mexico and six in central Ohio.

Last week, U.S. measles cases topped 700 as 

 joined five others states with active outbreaks. Even as the virus continued to spread and the U.S. Centers for Disease Control and Prevention redeployed a team to West Texas, 

 claimed in a televised Cabinet meeting Thursday that measles cases were plateauing nationally. The U.S. has more than double the number of 

Texas is reporting the majority of measles cases. 

Two unvaccinated elementary school-aged children

 died from measles-related illnesses near 

the epicenter of the outbreak in rural West Texas

 who was not vaccinated also died of a measles-related illness.

 — defined as three or more cases — include Indiana, 

The multistate outbreak confirms health experts' fears that the virus will 

 with low vaccination rates and that the spread 

. The World Health Organization has said 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 in late January. State health officials said Tuesday there were 20 new cases of measles since Friday, bringing the total to 

 — most of them in West Texas. Two more Texans were hospitalized, for a total of 58 throughout the outbreak, and Reeves County logged its first case.

State health officials estimated Tuesday that about 4 percent of cases — fewer than 25 — are actively infectious.

Sixty-five percent of Texas' cases are in Gaines County, population 22,892, where the virus started spreading in a close-knit, undervaccinated Mennonite community. The county has logged 364 cases since late January — just over 1 percent of the county's residents.

 according to Kennedy. Health officials in Texas said the child did not have underlying health conditions and died of “what the child's doctor described as measles pulmonary failure.” A unvaccinated 

child with no underlying conditions died of measles in Texas

 in late February — Kennedy said age 6.

New Mexico announced five new cases Tuesday, bringing the state’s total to 63. Three more people are in the hospital, for a total of five since the outbreak started. Doña Ana County reported its first case. Most of the state's cases are in Lea County. Two are in Eddy County and one in Chaves County.

State health officials say the cases are linked to Texas’ outbreak based on genetic testing. New Mexico reported its first 

 has 32 cases in eight counties in the southwest part of the state, health officials announced Wednesday. Two of the counties, Finney and Ford, are new on the list and are major population centers in that part of the state. Haskell County has the most with eight cases, Stevens County has seven, Kiowa County has six, and the rest 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 at 12 total cases Tuesday: nine confirmed and three probable. 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 Oklahoma City and Tulsa, Rogers and Custer counties, but wouldn't say which counties had cases.

The Knox County outbreak in east-central Ohio has infected a total 20 people as of Tuesday, according to a news release from the county health department, but seven of them do not live in Ohio. In 2022, a measles outbreak in central Ohio sickened 85.

The Ohio Department of Health confirmed 20 measles cases in the state last week: 11 in Ashtabula County near Cleveland, seven in Knox County and one each in Allen and Holmes counties. The state updates its count on Thursdays, and it only includes Ohio residents.

The outbreak in Ashtabula County started with an unvaccinated adult who had interacted with someone who had traveled internationally.

Indiana confirmed six connected cases of measles in Allen County in the northeast part of the state — four are unvaccinated minors and two are adults whose vaccination status is unknown.

The cases have no known link to other outbreaks, the Allen County Department of Health said Wednesday. The first case was confirmed Monday.

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

Measles cases also have been reported in Alaska, Arkansas, California, Colorado, Florida, Georgia, Hawaii, 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 frequently 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 712.

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 experts don't always recommend it and health insurance plans may not cover it.

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 percent — 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.

, including an outbreak in Chicago that 

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Texas state health officials confirmed 20 more cases of measles Tuesday, alongside five new cases in New Mexico. U.S. measles cases topped 700 as of Friday, and two children and an adult have died. New Mexico, Indiana, Kansas, Ohio, Oklahoma and Texas have active measles outbreaks.

U.S. measles cases surpass 700 with outbreaks in six states. Here’s what to know

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