The physical space of the MSK Library is permanently closed to visitors as of Friday, May 17, 2024. Please visit this guide for more information.
The physical space of the MSK Library is permanently closed to visitors as of Friday, May 17, 2024. Please visit this guide for more information.
Month |
State (County/City) |
Cases |
Details |
| January | |||
|
|
Rhode Island |
Unvaccinated child, international travel |
|
|
|
Alaska (Southern Kenai Peninsula) |
Unvaccinated adult, travel from Seattle to Anchorage |
|
|
|
Texas (Harris/Houston) |
Unvaccinated adults, same household, international travel, |
|
|
|
Texas (Gaines/Lubbock) |
Unvaccinated, school-age children, both hospitalized |
|
| Georgia (Atlanta) | 1 | Unvaccinated | |
| February | |||
|
|
Georgia (Atlanta metro) |
Unvaccinated, family of January case |
|
|
|
New Jersey (Bergen/Englewood) |
3* |
International travel, exposure at Englewood Hospital ED 2/9/25. On 2/20 two secondary identified, with close contact to the index case. All 3 unvaccinated. |
|
|
New York (NYC) |
No details provided on case |
|
|
California (LA,Orange) |
1 | Orange County Infant returning internationally, exposure at LAX airport on 2/19/25 | |
| Texas (Rockwall) | 1 | Unvaccinated adult with recent international travel; case not believed to be linked to West Texas outbreak. Case believed to be isolated with no known exposures. | |
| Kentucky (Franklin) | 1 | Adult with recent international travel, exposure at fitness center in Frankfort 2/26/25 | |
| Washington (King) | 1 | Unvaccinated infant with recent international travel | |
| New York (NYC) | 1 | No details provided on case | |
| Texas (Travis) | 1 | Unvaccinated infant with recent international travel. No exposures are expected to be connected to this case, and the infant’s family members are all vaccinated and are isolating at home. | |
| California | 2 | Two additional measles cases in California, no further information provided. | |
| March | |||
| Pennsylvania (Montgomery) | 1 | Unvaccinated child, recent international travel, exposures at JFK airport, Philadelphia, King of Prussia, and Plymouth Meeting PA 2/25-26/25 | |
| Texas (South Plains) | 223* | Majority unvaccinated, mostly school-age children, 29 hospitalized; one death (unvaccinated, previously healthy, school-age child). First case in outbreak confirmed 1/29/25. | |
| Florida (Miami-Dade) | 1 | An unvaccinated student at Miami Palmetto Senior High School has been diagnosed with measles, according to the Miami-Dade County Public Schools. The local health department will also be working to notify those who had close contact with the infected student. It’s unclear whether the student was present at the school Tuesday. The exact date when the student tested positive was also unknown. | |
| New Mexico (Lea) | 33* | The majority of cases in Lea County are unvaccinated adults. A deceased unvaccinated adult was confirmed to have had measles at the time of death, the man did not seek medical care before passing. First case of outbreak confirmed on 2/11/25. | |
| Maryland (Howard) | 1 | A confirmed case of measles was reported in Baltimore of a Howard County child with recent international travel. Exposure at Washington Dulles airport on 3/5 and the Johns Hopkins Howard County Medical Center Pediatric Emergency Department on 3/7. | |
| New York (Suffolk) | 1 | NYSDOH reports a confirmed measles case in a Suffolk county child under the age of 5. Exposures at Cohen Children's Medical Center Pediatric Emergency Department on 3/3-3/4 and inpatient on the Medicine 3 unit from 3/3-3/6. | |
| Oklahoma | 2* |
The Oklahoma State Department of Health (OSDH) has reported two measles cases in Oklahoma, linked to the West Texas outbreak. OSDH reports that once the individuals in question realized they had been exposed to measles associated with the outbreak in Texas and New Mexico, they took precautions by excluding themselves from public settings and staying home throughout their contagious period. |
|
| Vermont (Lamoille) | 1 | The Vermont Department of Health has confirmed a case of measles in a school-aged child in Lamoille County. The child became sick after returning with their family from traveling internationally in recent days. | |
| Total Cases | 284 | ||
The Texas Department of State Health Services is reporting an outbreak of measles in the South Plains region of Texas. Due to the highly contagious nature of this disease, additional cases are likely to occur in Gaines County and the surrounding communities. DSHS is working with South Plains Public Health District and Lubbock Public Health to investigate the outbreak.
And even more concerning, is that the latest measles case count likely represents only a fraction of the true number of infections. Health officials suspect 200 to 300 people in West Texas are infected but untested, and therefore not part of the state’s official tally so far.
The outbreak is in a sparsely populated swath of rural Texas, near the New Mexico border, and has spread from its epicenter in Gaines County to include single-digit cases in Lynn, Terry and Yoakum counties. The cases have been concentrated in a “close-knit, undervaccinated” Mennonite community, Texas Department of State Health Services spokesperson Lara Anton said. Gaines County is highly rural, so many of the families send their children to small private schools or are homeschooled, Anton said.
Measles cases were limited to rural areas surrounding Lubbock, Texas, the largest city in the region, until February 14th, when Lubbock Public Health confirmed its first case. People who live in Gaines County regularly head into Lubbock to shop and do other business. That includes a large number of unvaccinated people who may have been exposed to measles.
“Communities who don’t vaccinate are not necessarily isolated to their area. They commute to Lubbock,” said Dr. Ana Montanez, a pediatrician at Texas Tech Physicians in Lubbock. “By doing that, they’re taking the disease with them.”
Several of Montanez’s young patients were exposed recently, she said, one just by sitting in the same clinic waiting room with another child who was later confirmed to have measles. That child had traveled from another county for care.
On March 6th, the Texas Department of State Health Services (DSHS) created an outbreak case definition, expanded the number of counties included in the outbreak area, and reiterated recommendations for immunization within that area. This case definition defines the outbreak area as the following six counties (Dawson, Gaines, Lynn, Martin, Terry, and Yoakum), extending immunization recommendations to that area. The geographic area considered as part of the outbreak will be evaluated on an ongoing basis and can be adjusted when there is enough epidemiologic evidence to support this.
Those include considering an early dose of MMR vaccine for infants ages 6 to 11 months and a second dose for adults who have received only one. It also expands the definition of an epidemiologically linked confirmed case to include patients with a fever and rash who live in or have visited the outbreak area in the last 21 days.
TSDHS | Last Updated: March 11, 2025
| County | Case Count |
|---|---|
| Gaines | 156 |
| Terry | 32 |
| Yoakum | 10 |
| Dawson | 10 |
| Dallum | 5 |
| Martin | 3 |
| Lubbock | 3 |
| Ector | 2 |
| Lynn | 2 |
| Total | 223 |
| Age Range | Case Count |
| 0 - 4 Years Old | 76 |
| 5 - 17 Years Old | 98 |
| 18+ Years Old | 38 |
| Pending | 11 |
| Vaccination Status | Case Count |
| Unvaccinated | 80 |
| At Least One MMR Dose | 5 |
| Unknown Vaccination Status | 138 |
On February 11, 2025 the New Mexico Department of Health (NMDOH) reported a confirmed case of measles in Lea County. The unvaccinated teenager with no recent travel or exposure to known cases from the Texas outbreak. On February 14th, the NMDOH reported that two adult residents of Lea County tested positive for measles, thus declaring a measles outbreak, based on the CDC's criteria of three unrelated cases in Lea County.
The New Mexico Department of Health launched a online state measles resource on February 28th to provide guidance and information on the outbreak.
On March 6, a Lea County resident was found to have measles upon death. Following this news a sharp rise in cases followed, with cases jumping from 9 to 30 on March 7th. The increase in case numbers reflects test results from the NMDOH Scientific Laboratory Division combined with cases discovered during epidemiologic investigations of known patients. These cases did not occur simultaneously, but were identified retrospectively, with many detected only after patients had already recovered from their illness.
The deceased, an unvaccinated Lea County adult, tested positive for measles after death and did not seek medical care before passing, according to laboratory confirmation from the NMDOH Scientific Laboratory Division, though the official cause of death remains under investigation by the New Mexico Office of the Medical Investigator.
NMDOH | Last Updated: March 11, 2025
| County | Case Count |
|---|---|
| Lea | 32 |
| Eddy | 1 |
| Total | 33 |
| Age Range | Cases | Percentage |
|---|---|---|
| 0 - 4 year | 5 | 15% |
| 5 - 17 years | 8 | 24% |
| 18+ years | 18 | 55% |
| Pending | 2 | 6% |
| Vaccination Status | Case Count |
|---|---|
| Unvaccinated | 27 |
| At least one MMR dose | 1 |
| Unknown vaccination status | 5 |
In reversing the January 2, 2025 decision to only update their measles count monthly, on February 20, 2025 the CDC announced they would be updating their counts every Friday.
As of March 7, 2025, a total of 222 measles cases were reported by 12 jurisdictions:
| Age Group | Cases | Percentage of Total Cases |
|---|---|---|
| Under 5 years | 75 | 34% |
| 5 - 19 years | 99 | 45% |
| 20+ years | 40 | 18% |
| Age unknown | 7 | 3% |
| Vaccination Status | Cases | Percentage of Total Cases |
| Unvaccinated or Unknown Vaccination Status | 209 | 94% |
| One MMR Dose | 9 | 4% |
| Two MMR Doses | 4 | 2% |
17% of cases hospitalized (38 of 222) for isolation or for management of measles complications.
| Age Group | Cases Hospitalized (Total by Age) | Percentage of Cases in Age Group |
|---|---|---|
| Under 5 years | 21 (76) | 28% |
| 5 - 19 years | 11 (99) | 11% |
| 20+ years | 5 (40) | 13% |
| Age unknown | 1 (7) | 14% |
There have been 2 confirmed deaths from measles. The first was a previously healthy, unvaccinated school-aged child who was hospitalized with measles complications in west Texas. The second was an unvaccinated adult who was confirmed after death to have had measles who did not seek treatment prior to his death.
There have been 3 outbreaks (defined as 3 or more related cases) reported in 2025, and 93% of cases (207 of 222) are outbreak-associated. For comparison, 16 outbreaks were reported during 2024 and 69% of cases (198 of 285) were outbreak-associated.