Measles Cases

• South Carolina health officials ended the nation's largest measles outbreak after six months, with 997 infections and 21 hospitalizations but no deaths. • The outbreak concluded Sunday following over a month without new cases. • This marks a significant public health milestone amid rising national vaccination concerns.

• Public health officials confirmed two cases of measles in Sacramento County, California, amid ongoing monitoring for potential spread. • The cases highlight persistent risks despite national vaccination efforts, with officials urging unvaccinated residents to seek immunization. • Measles outbreaks underscore gaps in herd immunity, particularly in localized communities, prompting heightened surveillance statewide.

Bottlenecks in the system and parent’s suspicions mean doctors expect another serious outbreak soonBy 10am on a spring day, the corridor of the clinic in the Transylvanian town of Săcele was already crowded with parents and children. They were all waiting to see Dr Mirela Csabai, one of just seven general practitioners serving a population of more than 30,000.Most of the cases that morning were routine: colds, checkups, chronic conditions. The calm, however, is recent. In 2024, a measles epidemic tore through this community and left one unvaccinated toddler dead. Continue reading...

• California has recorded at least 40 measles cases so far in 2026, surpassing the 25 cases of all 2025 and the highest annual total since 73 in 2019. • San Francisco confirmed its first measles case in 7 years in an unvaccinated infant under 1 year old, infected during international travel and recovering at home. • Outbreaks linked to unvaccinated travelers from South Carolina's 1,000-case surge and other states, with exposures at Sacramento preschools, San Bernardino, San Diego ER, and Bay Area sites.

Data shows 85% of those infected in the state have been not vaccinated against measles as dozens are hospitalizedMeasles: how does it spread and how can I protect my child?Utah has emerged as a major center of measles infections in the US, as an outbreak that has been building for some time continues to expand.State officials reported a total of 602 measles cases on Wednesday tied to an outbreak that started last year and is still ongoing, including 19 newly identified infections, according to the Center for Infectious Disease Research and Policy (CIDRAP). Recent exposures have been reported at several preschools and elementary schools. Continue reading...

• The US measles case count increased by 43 cases last week to 1,714 total, according to the CDC's weekly update released April 10, 2026. • More than half of the new cases occurred in Utah, marking a smaller jump compared to the prior week's 96-case increase. • This ongoing outbreak highlights gaps in vaccination coverage amid public health concerns over declining immunization rates.

• The CDC reported 43 new measles cases in the US for the week ending April 10, 2026, bringing the national total to 1,714 cases. • More than half of the new cases occurred in Utah, which saw 73 infections last week alone after 142 cases in the past three weeks versus 197 for all of 2025. • The slower increase compared to the prior week's 96 cases highlights ongoing outbreaks concentrated in specific states amid declining vaccination rates.

• Texas health officials reported 156 measles cases as of April 7, 2026, in a Dallas County outbreak starting March 15, with 12 hospitalizations. • 89% of cases unvaccinated, including 45 children under 5; infection rate 90% among exposed susceptibles. • Declared public health emergency; impacts 2 million residents, straining ERs amid 83% vaccination goal miss.

• US measles cases climbed to 1,671 as of April 6, 2026, with 96 new infections reported in the past week, the vast majority in Utah according to the CDC weekly update. • All but 10 cases are linked to 32 states and New York City, with 94% associated with 17 outbreaks including one new outbreak of three or more related cases. • The number of affected states increased by one this week, highlighting ongoing transmission risks amid declining vaccination rates.

• 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.

• Jerome Adams, former Surgeon General, discussed on CBS's Face the Nation a surge of more than 1,500 confirmed measles cases in the U.S. since January 2026, per CDC data. • A notable spike is occurring in Utah, contributing to the national increase in this highly contagious disease. • The outbreak highlights ongoing vaccination challenges and public health risks in under-immunized communities.

• 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.

• As of March 6, 2026, the United States has confirmed 1,300 measles infections this year across 30 states, putting the country on track to surpass 2025's record 35-year high numbers. • Measles has continuously circulated in the U.S. for over a year following an outbreak in Texas (January-August 2025), with ongoing outbreaks on the Utah-Arizona border and in South Carolina that drastically increased in January 2026. • The Pan American Health Organization postponed its decision from April to November 2026 on whether the U.S. should lose its measles elimination status achieved in 2000, but current trends suggest it likely will due to vaccination rates falling below the critical 95% threshold.

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.

In one Washington county, measles cases escalated from three to 12, prompting rapid exposure tracking, resident testing, and quarantine enforcement as of March 11. Local health workers are persuading contacts to isolate amid community resistance. The response highlights challenges in curbing outbreaks through compliance, critical for protecting vulnerable populations. Future actions focus on vaccination drives and surveillance to prevent wider transmission.

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.