Texas reaches 400 measles cases as US deals with outbreaks in 5 states
[March 29, 2025]
By DEVI SHASTRI
At least five states have active measles outbreaks as of Friday, and
Texas' is the largest with 400 cases.
Already, the U.S. has more measles cases this year than in all of 2024,
the U.S. Centers for Disease Control and Prevention has said. Other
states with outbreaks — defined as three or more cases — include New
Mexico, Kansas, Ohio and Oklahoma. Since February, two unvaccinated
people have died from measles-related causes.
The new outbreaks confirm health experts' fears that the virus will take
hold in other U.S. communities with low vaccination rates and that the
spread could stretch on for a year. The World Health Organization said
this week cases in Mexico are linked to the Texas outbreak.
Measles 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.
Here's what else you need to know about measles in the U.S.
How many measles cases are there in Texas and New Mexico?
Texas' outbreak began two months ago. State health officials said Friday
there were 73 new cases of measles since Tuesday, bringing the total to
400 across 17 counties — most in West Texas. Forty-one people have been
hospitalized since the outbreak began, and Andrews and Midland counties
were new to the list.
New Mexico announced one new case Friday, bringing the state’s total to
44. 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.
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.
How many cases are there in Kansas?
Kansas has 23 cases in six counties in the southwest part of the state.
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.
How many cases are there in Oklahoma?
Oklahoma stayed steady at nine cases this week — seven 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.
How many cases are there in Ohio?
Ohio has 10 cases of measles in Ashtabula County in the northeast corner
of the state, nine of those newly reported this week. The first case was
in an unvaccinated adult who had interacted with someone who had
traveled internationally.
And in central Ohio, Knox County officials are tracing exposures from
person who visited while contagious with measles. 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, Florida,
Georgia, Kentucky, Maryland, Michigan, Minnesota, New Jersey, New York,
Pennsylvania, Rhode Island, Tennessee, Vermont, and Washington.
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 The U.S. Centers for Disease Control
and Prevention defines an outbreak as three or more related cases.
The agency counted five clusters that qualified as outbreaks in 2025
as of Friday.
In the U.S., cases and outbreaks are generally
traced to someone who caught the disease abroad. 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.
Do you need an MMR booster?
The best way to avoid measles is to get the measles, mumps and
rubella (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.
What are the symptoms of measles?
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
dangerous complications such as pneumonia, blindness, brain swelling
and death.
How can you treat measles?
There’s no specific treatment for measles, so doctors generally try
to alleviate symptoms, prevent complications and keep patients
comfortable.
Why do vaccination rates matter?
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 U.S. saw a rise in measles cases in 2024, including an outbreak
in Chicago that sickened more than 60.
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AP Science Writer Laura Ungar contributed to this report.
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