HMHantavirus Maps

Official-source outbreak notes

Hantavirus outbreak explainers from reviewed official sources

This section collects conservative, source-linked outbreak content drafts. It explains selected official alerts and keeps each note separate from live surveillance, exact local risk, or medical advice.

Selected alerts

Official alerts currently summarized

The cards below reuse existing reviewed alert records and source registry IDs. They are point-in-time summaries, not current counts.

May 13, 2026 · World Health Organization

Hantavirus cluster linked to cruise ship travel, multi-country

WHO reported on 13 May 2026 that the MV Hondius cruise-associated Andes virus cluster included 11 reported cases, including three deaths; eight cases were laboratory-confirmed for Andes virus, two were probable, and one remained inconclusive and under further testing. WHO assessed the risk to the global population as low while international contact tracing and monitoring continued.

Event-specific international update. WHO assessed global population risk as low, while contacts linked to the ship and related travel were being traced and monitored. This is not a patient-location dataset, live case tracker, or general local risk map.

Read the event explainer

December 19, 2025 · PAHO/WHO

Hantavirus pulmonary syndrome alert in the Americas Region

PAHO/WHO issued an alert after increases in reported hantavirus infections during 2025 in endemic countries of the Americas, particularly the Southern Cone, and urged strengthened surveillance and risk reduction.

Regional aggregate context. It should not be read as a neighborhood-level or travel-specific risk prediction.

Read South America context

Event records

Citation-ready reviewed event pages

Each reviewed event has a human page plus a raw markdown shadow for AI retrieval and citation systems.

2026-05-17 · Canada / MV Hondius passenger response

Canada response to MV Hondius Andes hantavirus event

Canadian federal public health updates described continued domestic and international coordination for the MV Hondius Andes hantavirus event. PHAC reported a presumptive positive result on 16 May among high-risk monitored individuals and confirmed by laboratory testing on 17 May a Canadian Andes hantavirus case reported by the British Columbia Provincial Health Officer among MV Hondius passengers; all confirmed cases described by PHAC were passengers or crew, and overall risk to the general population in Canada remained low.

2026-05-17 · Europe / international MV Hondius response

ECDC cruise ship hantavirus response and passenger guidance updates

ECDC materials for the MV Hondius Andes virus event include the 6 May threat assessment, response activation, passenger guidance, and self-quarantine recommendations for asymptomatic contacts. ECDC framed the cluster as a closed-setting cruise event requiring contact management and public health follow-up while investigations continued.

2026-05-17 · Argentina / national surveillance coordination

Argentina reinforces hantavirus surveillance after MV Hondius cluster

Argentina official updates and BEN SE17 described the MV Hondius investigation, including eight onboard cases at that point, six confirmed and two probable, with three deaths; reference laboratories confirmed Andes strain findings. Argentina also reported diagnostic-supply and technical-assistance support for affected countries while domestic epidemiological investigation continued.

2026-05-15 · Washington, United States / MV Hondius exposure monitoring

Washington separates MV Hondius Andes exposure monitoring from unrelated Sin Nombre event

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.

2026-05-13 · Multi-country / Atlantic cruise-associated event

Hantavirus cluster linked to cruise ship travel, multi-country

WHO reported on 13 May 2026 that the MV Hondius cruise-associated Andes virus cluster included 11 reported cases, including three deaths; eight cases were laboratory-confirmed for Andes virus, two were probable, and one remained inconclusive and under further testing. WHO assessed the risk to the global population as low while international contact tracing and monitoring continued.

2026-05-12 · Minnesota, United States / overseas MV Hondius-related exposure

Minnesota monitoring statement for potential MV Hondius exposure

Minnesota Department of Health said it was monitoring one asymptomatic person in Minnesota who may have briefly been exposed overseas to someone from the MV Hondius cruise who tested positive for Andes virus, and emphasized that the health risk to the public remained very low.

2026-05-08 · California, United States / MV Hondius passenger monitoring

California monitoring passengers linked to MV Hondius Andes virus exposure

CDPH said it was coordinating with federal and local health partners after notification that California residents were aboard the MV Hondius. CDPH described daily symptom monitoring for a returned passenger and noted that at least one other California resident remained aboard the ship, while public risk in California was extremely low.

2026-05-08 · Oregon, United States / clinician alert and monitoring readiness

Oregon clinician alert for possible MV Hondius Andes virus exposures

Oregon Health Authority issued a clinician alert on Andes virus in patients returning from the MV Hondius cruise event. The alert said no exposed individuals had returned to Oregon at that time and that any exposed individuals returning to Oregon would be actively monitored for symptoms through 42 days after last exposure.

2026-05 · Utah, United States / MV Hondius passenger response

Utah resident passenger linked to MV Hondius response

Utah DHHS stated at least one Utah resident was a passenger on the MV Hondius and said this did not increase hantavirus risk to the Utah population while state and federal officials coordinated monitoring.

2025-12-19 · Americas Region, especially Southern Cone countries

Hantavirus pulmonary syndrome alert in the Americas Region

PAHO/WHO issued an alert after increases in reported hantavirus infections during 2025 in endemic countries of the Americas, particularly the Southern Cone, and urged strengthened surveillance and risk reduction.

Scope

What this section can and cannot show

These pages are official-source event explainers and reviewed source notes.
They are not a live timeline, current case tracker, exact local risk page, travel clearance tool, or medical advice.
Official agencies remain the authoritative source for current investigations, case definitions, contact follow-up, and local public health actions.

Drafting rules

How outbreak explainers are written

Use registered official sources first: WHO, ECDC, PAHO/WHO, and related agency notices already reviewed for this site.

Summarize the event at the level the official source supports, and avoid inferring route, cabin, port, household, or neighborhood risk.

Keep Andes virus wording narrow: documented limited person-to-person transmission does not mean all hantaviruses spread that way.

Source transparency

Reviewed Sources

Links open official public health or agency-published source material used for the summaries on this page.

World Health Organization

Hantavirus

Global disease overview, syndromes, and Andes virus human-to-human transmission caveat.