Articles about Measles Outbreak

• The US measles outbreak has accelerated in 2026 with cases now reported in more than half of the states, marking a resurgence 20 years after official eradication, driven primarily by declining vaccination rates. • Last year, the US reported over 2,000 measles cases (2,213 confirmed) and three pediatric deaths, with the mortality rate matching historical data of approximately one death per 1,000 infected children. • Oregon has diagnosed 13 measles cases so far in 2026 with hundreds of potential exposures in the past week; health experts note that official case counts likely underestimate true infection rates due to unreported cases and undetected transmission indicated by wastewater data.

• The US measles caseload climbed to 1,671 infections with nearly 100 new cases reported in the past week, according to the CDC's weekly update, with the vast majority occurring in Utah. • Utah recorded 73 new measles cases this week and 142 new cases over the past three weeks, bringing the state's 2026 total to 362 cases compared with 197 for all of 2025. • The outbreak spans 32 states and New York City, with 94% of confirmed cases linked to one of 17 outbreaks; Arizona has 71 total cases, Florida has 129, and Texas has 175 cases.

• Florida reported 143 measles cases as of March 21, 2026, with 73% concentrated in Collier County, marking a decline from 139 cases the previous week. • The state has dropped to the fourth-highest number of measles cases nationally as the spread slows, indicating a shift in outbreak trajectory. • The majority of cases remain geographically concentrated, with nearly three-quarters of infections occurring in a single county, suggesting localized transmission patterns.

• A measles outbreak in Washtenaw County, southeast Michigan, now includes 7 cases under investigation involving unvaccinated children and adults, with potential exposure at Trinity Health Ann Arbor Hospital's ER on March 21. • The latest case concerns a young child treated in Ypsilanti, raising concerns that ER visitors may have been exposed to the highly contagious virus. • All confirmed and suspected cases are among unvaccinated individuals, highlighting ongoing vaccination gaps amid the outbreak's growth reported on March 25.

• State officials are warning that spring break 2026 travel season could facilitate the spread of measles across the United States as travelers move between regions with varying vaccination rates. • Health authorities are concerned about potential measles transmission during the high-travel period, with implications for public health preparedness and disease surveillance. • The warning underscores ongoing challenges in maintaining herd immunity and controlling vaccine-preventable diseases during major travel seasons.

The Centers for Disease Control and Prevention reported 1,362 confirmed measles cases nationwide in 2026, with 94% linked to ongoing outbreaks. South Carolina's outbreak, which began in October 2025, has decelerated to approximately 10 cases per week after peaking at 200 weekly cases in mid-January, bringing the state total to 996 cases as of March 13. Utah's outbreak, originating in June 2025, has accelerated to 405 cases as of March 10, representing a 47-case increase in one week. Both states currently host the largest active measles outbreaks in the United States.

The measles outbreak in Colorado tied to two Broomfield schools has grown to 10 cases, including two new confirmed infections and one suspected as of March 12. Public health teams are tracing exposures and urging quarantines. This cluster underscores vulnerabilities in school vaccination coverage amid rising national measles alerts. Officials plan expanded testing and contact tracing to halt further spread.

The measles outbreak linked to two schools in Broomfield, Colorado, has reached up to 10 cases, including two new confirmed infections and one suspected case reported on March 12. Public health officials are investigating exposures and urging vaccinations in the affected communities. This cluster highlights ongoing risks in under-vaccinated school groups amid national resurgence. Contact tracing and quarantine measures are ongoing to contain spread.

A major measles outbreak in South Carolina is showing signs of slowing, with cases nearing 1,000 total and new infections dropping to about 10 per week from a peak of 200 weekly in mid-January. State health officials report a consistent downward trend over several weeks amid vaccination efforts. The decline matters as it reduces strain on public health resources in a state hit hardest by the outbreak. Monitoring continues to prevent resurgence through summer.

A major measles outbreak in South Carolina is slowing, with nearly 1,000 total cases reported and new infections dropping to about 10 per week from a peak of 200 in mid-January. Health officials note a consistent downward trend over several weeks amid vaccination efforts. The decline matters as it signals potential containment in the largest U.S. outbreak this year, reducing risks to unvaccinated communities. Monitoring continues to prevent resurgence as cases stabilize.

A measles outbreak linked to two schools in Broomfield, Colorado has grown to as many as 10 confirmed and suspected cases, with two new confirmed infections and one suspected infection reported on March 12, 2026. The outbreak represents an emerging public health concern in the state as measles continues to spread in pockets across the United States. Health officials are working to identify additional exposures and contain further transmission in the affected school communities.