Minnesota measles cases rise to 21 after Mayo case
Minnesota’s measles total for 2025 has risen to 21 after a newly identified case linked to the Mayo Clinic in Rochester/Olmsted County; officials and local outlets have reported recent additional cases, including reports of 10 new infections among unvaccinated patients. Public health authorities and reporters say the surge is tied in part to declines in routine childhood vaccination, increasing the risk of transmission.
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📌 Key Facts
- Minnesota Department of Health (MDH) reported two additional measles cases on Oct. 13, 2025.
- Those Oct. 13 additions raised the year-to-date measles count above the previously reported 18 cases (bringing it to about 20 cases before the Mayo-linked case).
- Reporters and public health officials link the surge to declines in routine childhood vaccination rates, which increase transmission risk.
- A newly identified measles case associated with the Mayo Clinic in Rochester/Olmsted County accounted for the latest increase.
- As of Oct. 21, 2025, Minnesota’s measles total for 2025 reached 21 cases.
📚 Contextual Background
- Since 2025-09-29, the Minnesota Department of Health confirmed 10 new measles cases in the Twin Cities metro, bringing Minnesota's 2025 measles case total to 18.
- All 10 of those new measles cases were connected to travel: seven were associated with recent domestic travel (linked to three cases reported the prior week) and three were associated with international travel.
- All 10 of the new measles cases confirmed since 2025-09-29 were among unvaccinated patients.
- As of the 2024-2025 school year, 86.53% of kindergarten students in Minnesota were vaccinated; only Wisconsin (84.8%), Alaska (81.2%), and Idaho (78.5%) had lower kindergarten vaccination rates.
📰 Sources (3)
Mayo measles case brings Minnesota’s total to 21 this year
New information:
- Minnesota’s measles total for 2025 has increased to 21 cases.
- A newly identified case associated with Mayo (Rochester/Olmsted County context) accounts for the latest increase.
Minnesota adds two cases to measles surge amid decline in routine vaccinations
New information:
- MDH reported two additional measles cases on Oct. 13, 2025, since the previous statewide/metro update.
- The article ties the surge to declines in routine childhood vaccination rates, adding context to transmission risk.
- The new cases raise the year-to-date total above the previously reported 18 cases (likely 20 total for 2025).