Trending Now - Measles Outbreak in South Carolina Ends, Boosts Vaccination Rates
WHO:
ABC News Health - South Carolina Department of Public Health officials announced the end of the measles outbreak.
CNN - Dr. Brannon Traxler, deputy director and chief medical officer with the South Carolina Department of Public Health, provided statements regarding vaccination efforts.
CNN - Dr. Josh Williams, a pediatrician with Denver Health, discussed vaccination trends.
CNN - Dr. Paul Offit, director of the Vaccine Education Center at the Children’s Hospital of Philadelphia, commented on public perception of measles.
WHAT:
NBC News - The outbreak response cost the state approximately $2.1 million.
NBC News - South Carolina reported an additional measles case this month, which exposed more than 40 people.
CNN - The latest data from the CDC shows that 1,792 measles cases have already been reported in 2026, with dozens added each week.
CNN - An outbreak that has been simmering along the Utah-Arizona state line has ballooned to more than 600 confirmed cases, with even more suspected.
NPR - The outbreak in South Carolina was the largest measles outbreak in the U.S. since 1991, with 997 people infected and at least 21 hospitalized.
NPR - The outbreak was largely contained to the northwest region of South Carolina and never went statewide.
NPR - The measles vaccination coverage in East Darfur has fallen to 46%, while routine immunization dropped to just 48% in 2024.
NBC News - The outbreak response cost the state approximately $2.1 million.
NBC News - Public health officials confirmed more than 650 cases in January alone.
NBC News - Nearly 82,000 measles vaccines were administered from October to March, an increase of more than 30% from the same time period a year prior.
NBC News - Spartanburg County saw a 94% increase in vaccinations.
CNN - The latest data from the CDC shows that 1,792 measles cases have already been reported in 2026, with dozens added each week.
NBC News - An outbreak that started on the Arizona-Utah border has sickened 607 people in Utah and 282 in Mohave County, Arizona.
NBC News - South Carolina reported an additional measles case this month, which exposed more than 40 people.
ABC News Health - The measles outbreak in South Carolina, the worst in the U.S. in over 35 years, is over.
WRAL - Nearly 1,000 confirmed cases of measles were reported during the outbreak, including at least 21 hospitalizations.
CNN - No new cases associated with the outbreak have been reported in more than 42 days.
CNN - The outbreak contributed to a record-breaking year for measles cases in the U.S.
CNN - The response to the outbreak cost the state approximately $2 million.
CNN - Doses of the measles-mumps-rubella (MMR) vaccine administered in Spartanburg County nearly doubled compared to the previous year, with a 31% jump statewide.
WHERE:
ABC News Health - The outbreak occurred in South Carolina.
WRAL - Spartanburg County was identified as the center of the outbreak.
WHEN:
WRAL - The outbreak started in October.
CNN - The CDC reported that about 97% of 3-year-olds in the U.S. in 2025 had at least one dose of the MMR vaccine.
WHY:
NBC News - The virus has resurged across the Americas since a major outbreak started in Canada in fall 2024.
WRAL - Public health experts attributed the rise in measles cases to falling vaccination rates, with over 90% of cases among unvaccinated individuals.
CNN - Experts noted that the outbreak may have encouraged hesitant parents to vaccinate their children.
HOW:
NBC News - The public health department sent nearly 2,300 quarantine letters and made more than 1,670 case investigation calls.
NBC News - The outbreak response involved working across seven school districts to quarantine 874 students.
NBC News - The public health department sent nearly 2,300 quarantine letters and made more than 1,670 case investigation calls.
CNN - Vaccination, aggressive contact tracing, case investigation, and quarantine protocols were employed to control the outbreak.
CNN - The MMR vaccine is reported to prevent disease about 93% of the time with one dose and 97% with two doses.
(UPDATED April 28, 2026 04:13 UTC)
The outbreak of measles in South Carolina has become the largest in the U.S. since 1991, with 997 confirmed cases and at least 21 people hospitalized. In response, the public health department has sent nearly 2,300 quarantine letters and worked across seven school districts to quarantine 874 students, costing the state approximately $2.1 million. Meanwhile, the CDC reports that 1,792 measles cases have already been documented in 2026, with an outbreak along the Utah-Arizona state line growing to more than 600 confirmed cases.
--
(UPDATED April 27, 2026 23:17 UTC)
The measles outbreak that began on the Arizona-Utah border has now sickened 607 people in Utah and 282 in Mohave County, Arizona, with South Carolina reporting an additional case this month that exposed over 40 individuals. Public health officials confirmed more than 650 cases in January alone, and the CDC reports that 1,792 measles cases have already been documented in 2026, with dozens being added each week. In response, nearly 82,000 measles vaccines were administered from October to March, marking a more than 30% increase from the previous year, while Spartanburg County experienced a remarkable 94% rise in vaccinations.
--
(UPDATED April 27, 2026 19:22 UTC)
Health officials in South Carolina have announced the end of the measles outbreak, which was the worst in the U.S. in over 35 years and resulted in nearly 1,000 confirmed cases and at least 21 hospitalizations. The outbreak, which began in October, prompted a significant increase in vaccination efforts, with doses of the measles-mumps-rubella vaccine nearly doubling in Spartanburg County compared to the previous year. Experts believe that the outbreak may have encouraged hesitant parents to vaccinate their children, as public health measures like aggressive contact tracing and quarantine protocols helped bring the situation under control.