US surpasses 1,000 measles cases for the 3rd time in 26 years: CDC
A sign outside a mobile clinic offering measles and flu vaccinations on February 6, 2026 in Spartanburg, South Carolina. (Sean Rayford/Getty Images)
(NEW YORK) — Measles cases have topped 1,000 in the United States for the third time in 26 years.
At least 154 new measles cases have been confirmed in the last week for a total of 1,136, according to updated data from the Centers for Disease Control and Prevention (CDC).
So far this year, cases have been confirmed in 27 states: Arizona, California, Colorado, Florida, Georgia, Idaho, Illinois, Kentucky, Maine, Minnesota, Nebraska, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Texas, Utah, Vermont, Virginia, Washington and Wisconsin.
Just six measles cases were reported among international travelers so far this year, according to CDC data.
About 92% of cases are among people who are unvaccinated or whose vaccination status is unknown, CDC data shows.
Meanwhile, 4% of cases are among those who have received just one dose of the measles, mumps, rubella (MMR) vaccine and 4% of cases are among those who received the recommended two doses, according to the CDC.
The current measles situation in the U.S. is partly being driven by a large outbreak in South Carolina that began last year, with 979 cases recorded as of Friday, according to state health officials.
Last year, the U.S. recorded 2,281 measles cases, which is the highest number of national cases in 33 years, according to the CDC. Before that, the last time measles cases rose above 1,000 was 2019 — CDC data showed 1,274 that year. Recorded cases dropped to a low of 13 in 2020, the first year of the COVID-19 pandemic.
The CDC currently recommends people receive two doses of the MMR vaccine, the first at ages 12 to 15 months and the second between 4 and 6 years old. One dose is 93% effective, and two doses are 97% effective against measles, according to the CDC.
However, federal data shows vaccination rates have been lagging in recent years. During the 2024-2025 school year, 92.5% of kindergartners received the MMR vaccine, according to data. This is lower than the 92.7% seen in the previous school year and the 95.2% seen in the 2019-2020 school year, before the COVID-19 pandemic.
U.S. President Donald Trump speaks to reporters in the Oval Office of the White House on December 15, 2025 in Washington, DC. Anna Moneymaker/Getty Images
(WASHINGTON) — The Trump administration announced new federal dietary guidelines on Wednesday, encouraging Americans to limit highly processed foods and to reduce refined carbohydrates.
The guidelines also recommend eating whole foods like fruits and vegetables, incorporating healthy fats, prioritizing protein-rich meals and consuming full-fat dairy with no added sugars.
The new Dietary Guidelines for Americans, which are updated every five years, come as Health and Human Services Secretary Robert F. Kennedy Jr. has made nutrition policy a cornerstone of his Make America Healthy Again agenda.
This is a developing story. Please check back for updates.
Stock image of a sick person. (Guido Mieth/STOCK PHOTO/Getty Images)
(WASHINGTON) — Flu activity is starting to decline nationwide, according to newly released data from the Centers for Disease Control and Prevention.
The CDC estimated on Friday that there have been at least 19 million illnesses, 250,000 hospitalizations and 10,000 deaths from flu so far this season.
Currently, seven states are seeing “very high” levels of flu-like illnesses while 23 states are seeing “high” levels, CDC data shows.
At least 12 flu-associated deaths were reported among children this week, for a total of 44 pediatric deaths this season. Last season saw a record-breaking 289 children die from flu, the highest since the CDC began tracking in 2004.
Despite flu activity on the decline, flu-related emergency department visits for school-aged children between ages 5 and 17 increased since last week while hospitalizations remained stable.
“I think what distinguished this year’s flu season to previous seasons is that, first of all, it began a little bit earlier,” Dr. Daniel Kurtzikes, former chief of infectious diseases at Brigham and Women’s Hospital, told ABC News.
Kuritzkes added that although data does not show that cases increased more dramatically than last year, “we may have perceived it as being worse than it really was, and it now seems like it peaked rather abruptly and is on a rapid decline.”
However, Kuritzkes noted that last year, flu season had a second bump in late winter. He warned that the same thing could happen this year.
Data shows that the majority of this season’s cases are linked to a new flu strain called subclade K — a variant of the H3N2 virus, which is itself a subtype of influenza A.
Subclade K has been circulating since the summer in other countries and was a main driver of a spike in flu cases in Canada, Japan and the U.K.
Dr. Geeta Sood, an assistant professor of medicine at Johns Hopkins Bayview Medical Center, explained that the annual flu vaccine formulation was decided before subclade K emerged, meaning the vaccine is a “mismatch” for the strain, to an extent, while still providing protection against serious disease, hospitalization and death.
“So, this year, we have a couple of problems,” she told ABC News. “One is that the circulating strain that’s predominantly out there is pretty different from the strains that we’ve seen in previous years. … Again, it changes every year, but the amount that it changes can be a lot some years and not so much other years.”
However, she said that early data from the U.K. shows that the vaccine has been protective against serious complications, particularly among children.
“It certainly protects against severe disease, but it’s not one of our best matching vaccines,” Sood said.
Another problem, according to Sood, is that vaccination rates are lower than she would like to see.
As of Jan. 10, 45.6% of adults aged 18 and older and 44.2% of children have received an annual flu vaccine, according to CDC data.
Sood said it’s not too late to get vaccinated, especially because influenza season can last through early spring.
“Even though it takes two weeks to get full immunity, you still get immunity sooner rather than later,” she said. “There’s still plenty of influenza out there, and there’s reactivity to protect you against other strains”
Doctors told ABC News they recommend other hygiene methods, including thoroughly washing hands with soap and water, avoiding crowded places, getting good circulation by opening windows and considering masking.
Richard Zhang, MD, MA, is a child and adolescent psychiatry fellow at Yale School of Medicine and a member of the ABC News Medical Unit.
Pigs are raised by farmers in a rural area of Linquan County, Fuyang City, Anhui Province, China, July 11, 2022. (CFOTO/Future Publishing via Getty Images)
(NEW YORK) — Over the weekend, health officials in Spain reportedly informed the World Health Organization (WHO) of a possible human case of swine flu that may have been caused by person-to-person transmission.
The WHO’s reference laboratory for influenza in Britain is conducting additional tests to confirm the diagnosis, according to Reuters. The patient in Spain did not have direct contact with pigs, according to the wire agency.
Even though health officials reported that the risk to the general public is low, public health experts noted that some people may be concerned about spread after the U.S. experienced dozens of human bird flu cases in 2024 and 2025.
They told ABC News that, while the Spain case may put those who work in public health or who live in the area where it was detected on alert, widespread concern is not necessary yet.
“When we’re in any flu season, we see these sporadic swine flu cases globally,” Dr. Meghan Davis, an associate professor in the department of environmental health and engineering at Johns Hopkins Bloomberg School of Public Health, told ABC News. “If you’re in the immediate area, certainly pay really close attention to any directives from public health authorities, local health departments, et cetera.”
Davis emphasized the importance of staying informed when it comes to potential public health dangers.
“But someone who’s living at a distance, who is not working directly with animals, just having the awareness to pay attention to any health messaging around this for further guidance, that’s what I recommend,” she said.
What is swine flu?
Swine flu is a respiratory disease commonly found in pigs, which is caused by influenza type A viruses. Just like influenza viruses found in humans, there are different subtypes and strains of swine influenza viruses.
Humans are not typically infected with swine flu viruses, but there have been reports of human infections with influenza viruses that normally circulate in swine, according to the Centers for Disease Control and Prevention (CDC).
Notably, in 2009, the H1N1 influenza virus pandemic — sometimes referred to as the swine flu pandemic and caused by bird, swine and human flu viruses — led to an estimated 60.8 million cases, 274,304 hospitalizations and 12,469 deaths in the U.S., CDC data shows.
Occasionally, these virus strains “spill over and can infect humans, but the origin is in swine, and so the majority of these non-human influenza variants are infecting humans because they are in very close contact with swine, so they’re in the pig or pork industry,” Dr. Dean Blumberg, chief of pediatric infectious diseases at University of California, Davis Health, told ABC News.
“Those are the majority of cases, and most cases are transmitted directly to humans and there’s very few cases that are human-to-human transmission,” he added.
Should we be concerned?
Davis said she considers the Spain case to be of high concern for public health but not a major concern for the public currently.
“What that means is, those of us whose job it is to think about and worry about these always worry a bit more when there’s the potential for human-to-human transmission because that may also be a signal that the virus itself is showing characteristics of adaptation,” Davis said.
This is because the more adapted to human-to-human transmission a swine flu virus is, the greater the potential it has to go from person to person without weakening.
“But the public, there are some criteria that I think about in terms of public concern,” Davis added. “If you start hearing about something, for example, like the early days of COVID when it was clear that there were clusters that were circulating in people and that was going person to person, when you start to see a lot of that, that’s when you started to get much more concern.”
Blumberg agrees that there’s no need for major concern yet and that the Spain case points to the need for more surveillance because of the virus’ potential to mutate.
Additionally, researchers will need to characterize the current strain to see if it is more easily transmitted from human to human, he said.
“There’s additional studies that can be done locally to see if there’s been asymptomatic infection of the population that hasn’t been detected yet,” Blumberg said. “And that will help determine whether there’s been more widespread circulation. … I think it does point to the importance of supporting public health so that they can get a handle on this to see if this is something that requires additional attention.”
