AP Photo/Julio Cortez
A sign is seen outside of Seminole Hospital District offering measles testing Friday, Feb. 21, 2025, in Seminole, Texas.
Health officials in Montgomery County have reported that four residents in the same family contracted measles, marking the first cases in the Houston area this year.
The Montgomery County Health Department announced Tuesday that three of the family members had measles before reporting Wednesday that a fourth member of the family also had contracted the virus. The newer case is a woman between the age of 20 and 30 who is hospitalized, a department spokesperson wrote in a Wednesday afternoon news release.
The conditions of the other family members were not reported by the Houston-area health department.
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All four of the family members were exposed to someone with measles who had traveled from outside Texas, according to the health department, which said none of them had been vaccinated for the virus.
Measles is highly contagious and can have life-threatening health complications, especially in children younger than 5 years old. It spreads through the air when an infected person coughs or sneezes, according to the Montgomery County Health Department, which wrote in a social media post, “You can get measles just by being in a room where a person with measles has been. This can happen even up to 2 hours after that person has left.”
Measles was declared eliminated from the United States in 2000, but there has been a resurgence in cases in recent years. An outbreak in West Texas last year affected hundreds of people, with two young girls dying from the virus.
The Houston Health Department reported three additional measles cases in city residents last year. Another case was reported last year in nearby Fort Bend County.
Measles symptoms typically appear 7-14 days after contact with the virus, according to the Montgomery Public Health Department. Symptoms include high fever, cough, runny nose, a rash and red, watery eyes.
Those who suspect they have measles or have been exposed to the virus are encouraged to isolate from others and contact a health care provider before arriving at a medical facility.
Health officials say the measles, mumps and rubella vaccine (MMR) provides the best protection against measles. The Centers for Disease Control and Prevention (CDC) recommends that children receive a dose of the MMR vaccine at 12-15 months of age and a second dose at 4-6 years. Two vaccine doses are about 97% effective at preventing measles, according to the CDC.
Editor’s note: This story was updated July 22, 2026, to reflect a fourth measles case reported in Montgomery County.