Cases of Hantavirus by State (2026 Updates) | Box-Kat
Colorado, United StatesConfidence 95%Today
This report provides an update on hantavirus activity in the US, referencing a May 2026 cruise ship outbreak, a positive hantavirus mouse in San Diego, and states with the most confirmed cases between 2020-2025.
Species mentioned
- mouse
Source articles
Every claim above is derived from publicly available reporting. Click through to read the original at the publisher.
- PrimaryCases of Hantavirus by State (2026 Updates) | Box-Kat
box-kat.com · 2026-06-01
This report mentions the May 2026 cruise ship outbreak and also highlights specific US hantavirus activity. In January 2026, San Diego County, California, reported the first positive hantavirus mouse of the year. It also notes that Arizona, New Mexico, and Colorado have had the most confirmed cases in the US between 2020-2025.
- ReferenceWhat's going around? Hantavirus outbreak update: what Virginians need to know this week
wsls.com · 2026-05-29
On May 29, 2026, 10 News reported that federal health officials are monitoring the hantavirus outbreak tied to the MV Hondius cruise ship, which has caused three deaths. No US cases of the Andes strain from this outbreak have been confirmed. Separately, Colorado recorded its first hantavirus death since 2024, linked to rodent exposure and unrelated to the cruise ship. Two Virginia residents and two Maryland residents are being monitored after potential contact with a symptomatic case patient during international air travel.
- ReferenceCases of Hantavirus by State (2026 Updates) | Box-Kat
vertexaisearch.cloud.google.com · 2026-06-01
Box-Kat reported on May 4, 2026, an update on hantavirus cases in the US, noting 864 cases between 1993 and 2022, with 94% occurring west of the Mississippi River. The article highlights the MV Hondius cruise ship outbreak in May 2026, which caused three deaths and sickened at least four, raising concerns about human-to-human transmission of the Andes virus. It also references past cases, including Betsy Arakawa's death in Santa Fe, New Mexico, and three fatal cases in Mono County, California, in 2025. Arizona, New Mexico, and Colorado had the most confirmed cases between 2020-2025.
- ReferenceProtect yourself and your home with these hantavirus awareness and prevention tips
westfaironline.com · 2026-06-01
Westfair Communications published on May 25, 2026, hantavirus prevention tips for homeowners, emphasizing rodent control. The article mentions the MV Hondius outbreak, which infected 10 people and killed three, and a separate death in Colorado from local rodent exposure. The Dutch cruise ship has returned to Rotterdam for deep cleaning, and exposed passengers are quarantined, including 16 Americans at the University of Nebraska Medical Center in Omaha and two at Emory University Hospital in Atlanta.
- ReferenceReported Cases of Hantavirus Disease - CDC
cdc.gov · 2026-06-01
The CDC provides an overview of hantavirus disease in the United States, reporting 890 cases since surveillance began in 1993, as of the end of 2023. Hantavirus Pulmonary Syndrome (HPS) became a nationally notifiable disease in 1995. The initial surveillance efforts in 1993 were prompted by an outbreak of severe respiratory illness in the Four Corners region, encompassing Arizona, Colorado, New Mexico, and Utah. The CDC notes that county-level data is not publicly provided to protect patient identities.
Reminder
This report is an aggregated summary of public information for surveillance and awareness purposes only. It is not medical advice. For symptoms, exposure, or clinical decisions, contact a qualified clinician or your local public-health authority.