Reviewed event record
Washington DOH said it was assisting with two separate hantavirus-related investigations: three King County residents potentially exposed to Andes virus linked to the MV Hondius event, and a separate unrelated local hantavirus infection. DOH emphasized that the virus strains and exposure circumstances were different and not connected, and that public risk remained very low.
Record fields
Interpretation
State response update only. Andes virus exposure monitoring and routine Sin Nombre virus risk must remain separated; this is not a Washington live case feed, patient-location dataset, or evidence of local Andes virus spread.
Source transparency
Links open official public health or agency-published source material used for the summaries on this page.
Washington State Department of Health
Washington state update separating MV Hondius Andes-virus exposure monitoring from an unrelated local Sin Nombre hantavirus infection investigation.
State response notice only. It does not indicate public community spread, patient locations, or a live Washington case feed.
Centers for Disease Control and Prevention
CDC risk-stratification and monitoring guidance for people potentially exposed through the MV Hondius Andes virus outbreak, including 42-day monitoring and high-risk/low-risk contact definitions.
Guidance for public health authorities. It is not clinical advice for individual readers and may be revised as evidence changes.
World Health Organization
Latest WHO Disease Outbreak News update for the MV Hondius Andes virus cluster, including 11 reported cases, eight confirmed Andes virus infections, two probable cases, one inconclusive case, three deaths, and low global risk assessment as of 13 May 2026.
Event-specific point-in-time notice. It should not be treated as live surveillance, patient-location data, or a general local risk map.