Pennsylvania measles outbreak approaches 1,400 cases as US total exceeds 4,500.
Is it spreading to new areas?
Spread confirmed
As of 28 October 2026, health officials have confirmed cases and exposure sites in new areas including Macon County, DuPage County in Illinois, and Houston County in Georgia.
Sources: CBS NewsCBS News 2CBS News 3Key figures
| Figure | Value | Basis | As of | Sources |
|---|---|---|---|---|
| Pennsylvania Total Measles Cases Stated by the Pennsylvania Department of Health. | Approaching 1,400 | Official | Sources: PennLiveReuters | |
| US Total Measles Cases Stated by the US Centers for Disease Control and Prevention. | 4,588 | Official | Sources: ReutersCIDRAP | |
| Lancaster County Cases Reported by local outlet LNP | LancasterOnline without citing a named public health agency. | 478 | Unverified | Sources: LNP | LancasterOnlineLNP | LancasterOnline 2 | |
| US Measles Deaths Discrepancy The CDC acknowledges 3 national deaths while Pennsylvania health officials have reported at least 6 state deaths. | 3 (CDC) / 6 (Pennsylvania) | Official | Sources: Fox NewsThe Philadelphia InquirerFOX 29 Philadelphia |
Who says what
| Who | Says | Date | Sources |
|---|---|---|---|
| Pennsylvania Department of Health | Reported statewide cases approaching 1,400 and warned doctors regarding risks of congenital measles and pregnancy complications. | Sources: PennLiveReutersThe Hill | |
| US Centers for Disease Control and Prevention | Confirmed 4,588 US cases and 3 deaths nationally, and deployed an investigator to Pennsylvania. | Sources: ReutersCBS NewsFox News | |
| Western Pennsylvania Health Directors | Stated that Western Pennsylvania remains well-protected against measles, though obstacles to vaccination persist. | Sources: Pittsburgh Post-Gazette | |
| Penn State Health | Issued public exposure warnings for locations including Lancaster Medical Center and Hershey. | Sources: WGALLNP | LancasterOnline |
Summary
As of 28 October 2026, Pennsylvania health officials report total measles cases approaching 1,400 as the US national outbreak total exceeds 4,500 cases in 2026.
Health officials in Pennsylvania are conducting word-of-mouth outreach in under-immunized communities, while the CDC has dispatched an investigator to assist with state response efforts amid internal disputes over death counts and testing validation.
Timeline
- DuPage County in Illinois reports its first 2026 case while Pennsylvania officials warn of congenital measles risks.Sources: CBS NewsThe Hill
- CDC updates nationwide measles total to 4,588 confirmed cases across the United States.Sources: Reuters
- Pennsylvania Health Department reports 73 weekly cases, bringing the state total to 1,360.Sources: 6abc PhiladelphiaReuters
- CDC Deputy Director Jennifer Shuford resigns amid a dispute over unacknowledged Pennsylvania measles deaths.Sources: The Philadelphia Inquirer
- Pennsylvania health officials report cases approaching 1,400 as another measles death occurs in the state.Sources: PennLiveABC News
Still unknown
- The reason behind the discrepancy between death counts recognized by the CDC and those reported by Pennsylvania health officials.
- Whether delays in validating high-volume testing will hamper state efforts to track new infections quickly.
- The full extent of transmission within close-knit, under-immunized rural communities.