As of Friday, there were 1,001 confirmed measles cases nationwide. Texas accounts for the majority of those, with 709 cases reported across 29 counties. Despite a slight slowing in new case reports in Texas, the outbreak remains the largest in the country, originating in a close-knit rural community with low vaccination uptake. Tragically, two unvaccinated elementary-aged children in Texas have died from complications linked to measles. An unvaccinated adult in New Mexico has also died from a measles-related illness after not seeking medical attention. Texas officials confirmed only seven new cases this week and one additional hospitalization, bringing the total to 92 hospitalizations. Approximately 1% of all Texas cases are still considered actively infectious. Over half of the cases in Texas occurred in one rural county, where the virus spread rapidly through a small population with limited immunity.
New Mexico has now confirmed 71 cases, primarily concentrated in Lea County, with additional cases appearing in Eddy, Doña Ana, Chaves, and Curry counties. Seven people have required hospitalization. One fatal case involved an adult who was unvaccinated and did not receive medical care. Oklahoma has recorded 14 confirmed cases and three probable cases. Though specific counties have not been publicly identified, previous exposure notices have been issued in various parts of the state.
Kansas reports 48 confirmed cases across eight southwestern counties, including Gray, Haskell, and Stevens. One patient has required hospitalization. Indiana has recorded eight cases, all within a single northeastern county with no known links to other outbreaks. Michigan has reported nine measles cases, including an outbreak of four connected infections in the western part of the state. Health authorities believe the cluster is tied to cross-border transmission.
Montana, which had not reported any measles cases in 35 years, now has eight cases, mostly originating in Gallatin County. North Dakota has confirmed nine cases, all within Williams County. Several were linked to school settings, sparking concerns about potential wider transmission. Ohio reports 34 confirmed cases and one hospitalization, spread across multiple counties. Two significant clusters were identified in Ashtabula County near Cleveland and Knox County in east-central Ohio. Other individual cases have been reported in Allen, Holmes, Cuyahoga, and Defiance counties.
Pennsylvania has confirmed 15 cases this year. Several of these stem from international travel, while others have been concentrated in northwestern counties, prompting an official outbreak declaration. Tennessee has reported six cases so far, primarily in the central part of the state. At least three are epidemiologically linked, though further details have not been disclosed.
Isolated measles cases have also emerged in numerous other U.S. states, including Alaska, Arkansas, California, Colorado, Florida, Georgia, Hawaii, Illinois, Kentucky, Louisiana, Maryland, Minnesota, Missouri, New Jersey, New York, Rhode Island, Vermont, Virginia, and Washington. Many of these cases are believed to stem from international travel followed by domestic transmission in under-vaccinated areas.
The measles virus is one of the most contagious pathogens known, transmitted through airborne respiratory droplets. Common symptoms include high fever, cough, runny nose, red and watery eyes, and a rash that spreads across the body. In some cases, complications such as pneumonia or encephalitis may occur, especially in children and those with weakened immune systems.
Measles is preventable through vaccination, primarily with the MMR (measles, mumps, rubella) vaccine. The first dose is typically administered between 12 and 15 months of age, with a second dose given between ages 4 and 6. Health authorities stress the importance of up-to-date vaccination to prevent outbreaks and ensure herd immunity, which requires a 95% immunization rate in communities.
The Centers for Disease Control and Prevention recommends that adults who are unsure of their vaccination status receive at least one dose of the MMR vaccine. Those vaccinated with an older, inactivated version of the vaccine before 1968 should receive a live version to ensure full protection. Herd immunity has been compromised in recent years due to declining childhood vaccination rates and an increase in personal and religious exemption requests. This erosion of community-level protection makes outbreaks more likely and difficult to contain.
With over a thousand confirmed cases already in 2025, health officials warn that the outbreak could continue to spread if immediate steps are not taken. Ensuring high vaccine coverage, educating the public about the risks of vaccine-preventable diseases, and responding quickly to emerging cases will be essential to controlling the current outbreaks and preventing future resurgences.
