As measles outbreaks flared up throughout the US final yr, inflicting a document variety of cases, Scott Thorpe stored a cautious eye on Spartanburg County, South Carolina.
Nestled in the foothills of the Appalachian Mountains in South Carolina’s upstate area, it’s a group with pockets of residents who’ve notably low vaccination charges.
It’s not a lot totally different than many different elements of the US, particularly as vaccination charges have been falling nationwide, mentioned Thorpe, who is the chief director of the Southern Alliance for Public Health Leadership, a nonprofit centered on bettering well being outcomes throughout the South. But Spartanburg County had already been by means of a measles outbreak a couple of decade earlier, and it’s now considerably extra weak: The share of schoolchildren in the county who’ve gotten the required immunizations has fallen from 95% to 90% over the previous 5 college years.
Then it occurred: The first measles cases hit the area final fall, and the South Carolina well being division declared an outbreak at the beginning of October. Now, greater than 300 cases have been reported over the previous few months, and there aren’t any indicators of slowing.
The state well being division reported 99 new measles cases Friday, bringing the full reported in the state this week to 125, a 68% jump in simply one week.
Holiday activites are in all probability a key contributor, mentioned Dr. Lina Bell, state epidemiologist with the South Carolina Department of Public Health and incident commander for the measles outbreak – particularly inside an undervaccinated group.
“The recent holidays were accompanied by breaks from school, family gatherings, religious services, and local and out-of-state travel,” Bell mentioned in an announcement. “All these potential public exposures increase the risk of measles spread in the outbreak area, and a combination of all of these, along with lower vaccination coverage in the area, is likely driving the current surge.”
The US Centers for Disease Control and Prevention shares the most recent nationwide information on Wednesdays, however there have been only some different occasions in the previous yr when the company has reported greater than 100 cases in one week: in late March and early April 2025, on the peak of the outbreak centered in West Texas.
“As community exposures increase, it’s becoming more and more difficult to actually pinpoint where all cases were exposed,” Bell mentioned at a media briefing Wednesday.
“When we’re seeing more and more transmission in the community, it’s important to recognize that we will reach a point when we won’t know about all cases,” she mentioned – a fear that has been heightened after the vacations, when colleges had been closed and public well being misplaced key connection factors to the group.
Coverage with the measles-mumps-rubella (MMR) vaccine is decrease than the nationwide common in South Carolina, and vaccination charges in Spartanburg County are among the many lowest in the state. Local well being care suppliers say that the extra imminent risk of measles has modified the calculus for some dad and mom who had been hesitant however now need safety for his or her little one.
Others, nonetheless, stay staunchly in opposition to vaccination — even when measles has reached their doorstep. And whereas the general public well being division is enacting measures to include unfold as a lot as doable, a rising listing of exposures is making it more and more troublesome to maintain the dam from breaking.
The South Carolina measles outbreak in all probability began in a Ukrainian immigrant group in the Spartanburg space, amongst whom vaccination charges are typically notably low, Thorpe mentioned, but it surely has taken maintain in a wider inhabitants in the area.
“Antivax attitudes are firmly embedded in Ukrainian society,” says an analysis printed in 2021 by the Wilson Center, a nonpartisan overseas coverage suppose tank. It cites many doable elements for the sentiment, however a lot might be traced again to the early 2010s, when the Ukrainian authorities mishandled the storage and administration of routine vaccinations, ensuing in many cases of problems amongst youngsters that had been initially lined up.
Many measles cases in the present South Carolina outbreak have resulted from exposures at native church buildings. But the outbreak has additionally continued to develop in the broader group, to the purpose the place some folks have had a number of publicity factors and it’s unclear which one could have led to a case, Bell mentioned. Public colleges have been main sources of unfold, and exposures have additionally been reported at eating places and outlets.
The overwhelming majority of measles cases in South Carolina have been amongst youngsters, practically all of whom had been unvaccinated.
The state well being division constantly promotes vaccination as the most effective protection. It has held pop-up vaccination clinics and continues to supply the cell well being unit to group companions in scheduling a vaccination occasion, however well being officers have mentioned that progress has been gradual.
“At this time, we need to increase MMR vaccination coverage to stop this outbreak,” Bell mentioned.
When measles cases had been rising in New Mexico final yr in reference to an outbreak in West Texas, well being officers there had far more success. Thorpe mentioned it in all probability comes all the way down to a distinction in sources and deeper funding from the state authorities.
“The folks who do outreach at the state health department in South Carolina are doing God’s work. They do amazing things with very little, but they’re still doing amazing things with very little,” he mentioned. “If you want to see turnout and engagement from the community, you can’t wait until there’s something really bad happening.”
With low charges of vaccination among the many native inhabitants, the well being division is counting on different efforts to include the unfold as a lot as doable. Contact tracing helps the company notify individuals who could have been uncovered, and unvaccinated persons are inspired to quarantine if they’re uncovered to a recognized case. But it’s a time-consuming and resource-intensive course of; a whole lot of individuals have been in quarantine over the previous few weeks, only a subset of the a whole lot extra who needed to be contacted.
“Our strategy is primarily focusing on rapidly identifying people who are infectious so that we can contain spread around them,” Bell mentioned.
That entails reaching individuals who had direct, shut contact and making public notifications of publicity settings, she mentioned – a prospect that will get tougher because the variety of exposures will increase and extra and extra persons are out and about in the group with out understanding that they could be infectious.
For unvaccinated youngsters, quarantine means lacking three weeks of faculty — a consequence that the state well being division warns dad and mom and guardians about as they’re applying for an exemption from vaccinations which can be required to attend college. It’s additionally a speaking level that Dr. Stuart Simko, a pediatrician who practices in a city on the sting of Spartanburg County, raises to folks who’re hesitant about vaccines.
“It’s just one more layer that we can talk about,” he mentioned, additionally noting the numerous financial affect it could have on households if a mother or father has to overlook work to deal with a toddler who’s out of faculty in quarantine.
Some households have chosen vaccination after going by means of one spherical of quarantine, however others have continued to not vaccinate – even after two rounds of quarantine, the state well being division mentioned.
Local pediatricians in the upstate area of South Carolina have additionally seen dad and mom refuse vaccination for his or her youngsters, even after direct expertise with sickness from measles.
Like many well being care suppliers in the US, Simko had studied measles however had by no means seen a case. Now his apply has handled 5 sufferers, and he says they had been among the sickest he’s ever seen.
Watching the development of illness was “shocking,” he mentioned. Through one little one’s common telehealth visits, he watched the rash develop in the hairline and make its approach down the kid’s physique, working with the dad and mom to assist handle the excessive fever and preserve the kid hydrated.
“He looked really sick. You could tell he did not feel well at all,” Simko mentioned. “Definitely one of the sicker kids that I’ve seen.”
When dad and mom have particular issues about vaccinating their youngsters, it’s normally doable to speak with them and discover settlement on the significance of vaccination, says Dr. Leigh Bragg, a pediatrician who practices about two counties over from the epicenter of South Carolina’s measles outbreak.
But extra and extra typically, dad and mom can’t pinpoint why they’re hesitant, she mentioned — which limits chance of change.
“It’s just kind of a feeling that they have or something that they have seen on social media,” Bragg mentioned. “That has been a challenge as a pediatrician. It’s kind of hard to explain why [vaccines are] important and ease their mind if you don’t really know what their reservations are.”
Vaccine exemptions for nonmedical causes have turn into more and more frequent in the US in latest years. In South Carolina particularly, non secular exemptions have practically doubled for the reason that begin of the Covid-19 pandemic, in response to data from the CDC.
But not all are for staunchly anti-vaccine causes and even due to vaccine hesitancy, Thorpe mentioned. In some cases, broader points round well being care entry come into play.
“When we look across a lot of the communities with lower vaccination rates, we know a good chunk of those folks who are not up to date on their vaccines are in that situation because they’re struggling with getting access,” Thorpe mentioned. “There’s a lot of great data out there that talks about how important the relationship is between a physician and a family. But if folks are struggling to access those kind of services, that doesn’t really get us so far.”
Since the peak of Covid, colleges throughout South Carolina have additionally been very centered on getting youngsters again into the classroom to keep away from potential situations the place they fall out of the schooling system utterly, Thorpe mentioned. It places colleges in an “unenviable position” of getting to decide on between pushing to get the kid vaccinated or letting them slide to allow them to proceed to obtain schooling and different companies that the college can present.
“In many cases, that religious exemption is a lot easier [for parents] than the multiple visits it would take to go see their provider to get their kids vaccinated,” he mentioned. “Until now, the consequences for that were fairly low.”
Overall, the US ended 2025 with 2,144 confirmed measles cases, in response to the CDC — considerably greater than at any level for the reason that early Nineties — and 2026 is on monitor to be simply as unhealthy, if not worse.
In November, the Pan American Health Organization, a part of the World Health Organization, decided that Canada had lost its measles elimination status amid a big ongoing outbreak there.
Elimination standing in the US – a standing the nation has held since 2000 – is now on the road.
Multiple giant outbreaks in the US that began final yr could also be linked, notably the West Texas outbreak and the continued outbreak in South Carolina. Questions stay about precisely how a lot proof PAHO might want to decide whether or not the 2 outbreaks are linked, however continued unfold by means of the top of January would mark one yr for the reason that begin – a time-frame that Bell considers all however inevitable, particularly with a whole lot of individuals at the moment in quarantine and little change in native vaccination charges.
At least 4 main worldwide airports in the US reported measles cases or potential exposures throughout peak holiday journey final month, and the New Mexico well being division warned of doable measles publicity in Albuquerque from somebody visiting from South Carolina.
Multiple cases in North Carolina have been linked to household journey to Spartanburg County, South Carolina, and on Thursday, Ohio declared a brand new outbreak in Cleveland’s Cuyahoga County. The outbreak is amongst three unvaccinated youngsters from the identical family who “traveled to an area in the United States with an ongoing measles outbreak,” the state well being division mentioned.
Another giant measles outbreak in the West has additionally been rising for months. Utah has reported 176 measles cases related to that outbreak, and Arizona reported greater than 200 cases in 2025, in response to information from the state well being departments.
Overall, the US reported 2,144 complete measles cases in 2025, in response to the CDC, the next annual complete than the nation has seen in greater than three many years. About 11% of these cases resulted in hospitalization, and three folks, together with two youngsters, died. The overwhelming majority of cases — 93% — had been amongst individuals who had not obtained a dose of the MMR vaccine.