Measles Outbreak in the U.S.: A State-by-State Overview of Reported Cases

The measles outbreak is experiencing significant growth across the United States, raising serious concerns about the health and safety of children and high-risk populations. Health officials are stressing the need for vaccination as cases continue to emerge.

As of March 11, West Texas has emerged as the epicenter of the outbreak, with confirmed cases exceeding 220. This alarming number underlines the need for immediate public health interventions and increased awareness about vaccination.

Below, we provide a comprehensive breakdown of the states where measles has been reported, along with the number of confirmed cases. News updates will follow as we receive new information from health authorities.

Alaska Reports First Cases

In Alaska, a measles case was documented involving an unvaccinated adult who traveled internationally in January 2025, according to the Alaska Department of Health. This situation reflects the risk posed by international travel amidst an outbreak.

California’s Growing Concern

California has confirmed five measles cases as of March 11. The state’s health officials are monitoring the situation closely, urging parents to ensure that children are vaccinated, particularly given the highly contagious nature of the virus.

Atlanta’s Cases on the Rise

Atlanta has reported a total of three measles cases this year. The first case appeared in January, and by February, two more family members had contracted the disease. The local health department is investigating potential links to international travel.

Kentucky’s First Case Since Last Year

On February 26, Kentucky recorded its first confirmed case of measles since February 2023. The adult patient traveled to an area where measles transmission is ongoing, highlighting the importance of vaccinations for travelers.

Maryland and New Jersey Cases Confirmed

On March 9, Maryland’s health authorities announced one confirmed case of measles involving an individual who had traveled internationally. Meanwhile, New Jersey has reported a total of three cases as of March 7. However, the state’s health department clarified that there is currently no ongoing community transmission.

Texas: The Epicenter of the Outbreak

As of March 11, a staggering 223 cases of measles have been reported in Texas, with 32 of those in Lea County. The outbreak has resulted in 29 hospitalizations and one tragic death, involving an unvaccinated adult who did not seek medical treatment.

Cases in New York and Oklahoma

New York has confirmed three measles cases, two in New York City and one outside the city. In Oklahoma, two new cases were reported on March 11, associated with the ongoing outbreak in Texas and New Mexico. Health officials continue to advise vaccination as a preventive measure.

Rhode Island’s Isolated Case

Rhode Island confirmed its first measles case of the year in January 2025, involving a young unvaccinated child with a recent history of travel. This emphasizes that even states with fewer cases must remain vigilant.

Vermont’s Recent Report

Vermont confirmed its first measles case of 2025 on March 11, involving a school-aged child who traveled internationally. This event further illustrates the potential for outbreaks linked to global travel.

Understanding the Measles Transmission Risk

Dr. Marc Siegel, a senior medical analyst, previously shared critical insights regarding the outbreak. He noted that measles is highly contagious, stating that there is a 90 percent chance of contracting the virus if an unvaccinated individual enters a room where someone with measles had been two hours earlier.

Siegel attributes the outbreak to rising exemption rates for childhood vaccines, which have dipped below 85 percent compliance. This situation raises concerns about community immunity and the ability to contain spread.

The Cases in Context

The majority of current measles cases involve unvaccinated individuals, primarily school-aged children. Health experts agree that receiving the two-dose measles, mumps, and rubella vaccine is the most effective strategy for protection against measles.

With coverage rates falling, public health officials are doubling down on efforts to inform parents and guardians about the importance of vaccinations. Encouraging higher vaccination compliance could mitigate the risk of future outbreaks.

The Call for Vaccination

The Centers for Disease Control and Prevention recommends that all eligible individuals receive the MMR vaccine. Vaccination not only protects the individual but also helps shield vulnerable populations, including infants and those with compromised immune systems.

As the measles outbreak unfolds, staying informed and vigilant is crucial. Parents are urged to act promptly, ensuring that their children are up to date with vaccinations and protected from outbreaks.

Looking Ahead

As health authorities continue to monitor and respond to the outbreak, this situation serves as a stark reminder of the importance of vaccinations. Community immunity plays a vital role in preventing widespread outbreaks. In the coming weeks, further updates will shed light on the effectiveness of public health measures and vaccination campaigns.