United States
Provisional residence-country presence only. This does not assign any case to the United States and should be replaced when CDC publishes direct information.
Hantavirus cluster linked to m/v Hondius cruise travel
Track the ship movements, case counts, and countries of exposed individuals.
Move through time
Route timeline
Residence-country shading Route stop Case event Movement/Response Disembarkation Flight path
Cases by onset/report date
Epi curve
Confirmed Probable/suspected
Hover bars for status, nationality/residence context, and source notes. The Swiss confirmed case uses report date because official updates did not specify an onset date.
Case details
Linelist
| Onset Date | Status | Age/Sex | Outcome | Residence | Notes |
|---|---|---|---|---|---|
| Apr 6 | probable | 70 / M | deceased | Netherlands | WHO reported no microbiological testing for the first fatal case. |
| Apr 24 | confirmed | 69 / F | deceased | Netherlands | Close contact of case 1; later confirmed by PCR according to WHO. |
| Apr 24 | confirmed | M | hospitalized ICU | United Kingdom | PCR-confirmed hantavirus infection in a medically evacuated male passenger; UKHSA reported one British national among suspected hantavirus medical evacuations. |
| Apr 28 | probable | F | deceased | Germany | WHO reported an adult female with pneumonia died on 2 May after symptom onset on 28 April. |
| May 4 | confirmed | Not published | hospitalized in Netherlands | WHO reported three symptomatic passengers were medically evacuated from Cape Verde to the Netherlands; two were stable in hospital. Confirmation is assigned to align with WHO aggregate reporting of five confirmed cases; WHO did not publish row-level identifiers for every confirmation. | |
| May 4 | confirmed | Not published | hospitalized in Netherlands | WHO reported three symptomatic passengers were medically evacuated from Cape Verde to the Netherlands; two were stable in hospital. Confirmation is assigned to align with WHO aggregate reporting of five confirmed cases; WHO did not publish row-level identifiers for every confirmation. | |
| May 6 | confirmed | Not published | hospitalized | Switzerland | WHO reported the Saint Helena disembarker developed symptoms in Zurich and was confirmed infected; HUG reported sequencing identified Andes virus. Exact onset date was not published, so report date is used for display. |
| May 7 | probable | Not published | medevac from Cape Verde; asymptomatic after transfer | Oceanwide reported the third evacuated person was associated with the passenger who died on 2 May; WHO/Oceanwide later described one of the three Cape Verde medevacs as asymptomatic. Residence/nationality were not published in the WHO update. |
Residence-country data
Cases and onboard presence
United Kingdom
UKHSA reported one British national among suspected hantavirus medical evacuations. British nationals were also reported among people to be repatriated.
Switzerland
Case country shown only where ECDC described diagnosis after return to Switzerland; not by exposure or treatment location.
Belgium
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Belgium.
France
Residence-country shading uses reported onboard nationality presence only; no case is assigned to France.
Germany
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Germany.
Greece
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Greece.
Ireland
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Ireland.
Netherlands
Residence-country shading uses reported onboard nationality presence only; no case is assigned to the Netherlands because WHO/ECDC did not publish case residence by country.
Poland
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Poland.
Portugal
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Portugal.
Spain
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Spain.
Singapore
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Singapore.
Canada
Oceanwide listed this nationality among guests who disembarked at Saint Helena on 24 April. The Canadian government confirmed two disembarked, and a third was on the flight with a symptomatic individual.
Denmark
Oceanwide listed this nationality among guests who disembarked at Saint Helena on 24 April. This is presence-only for country highlighting and should not be interpreted as total exposed/onboard count by residence.
Saint Kitts and Nevis
Oceanwide listed this nationality among guests who disembarked at Saint Helena on 24 April. This is presence-only for country highlighting and should not be interpreted as total exposed/onboard count by residence.
New Zealand
Oceanwide listed this nationality among guests who disembarked at Saint Helena on 24 April. This is presence-only for country highlighting and should not be interpreted as total exposed/onboard count by residence.
Sweden
Oceanwide listed this nationality among guests who disembarked at Saint Helena on 24 April. This is presence-only for country highlighting and should not be interpreted as total exposed/onboard count by residence.
Türkiye
Oceanwide listed this nationality among guests who disembarked at Saint Helena on 24 April. This is presence-only for country highlighting and should not be interpreted as total exposed/onboard count by residence.
Official updates first
Sources
2026-05-04
WHO Disease Outbreak News
World Health Organization
Initial Disease Outbreak News report describing seven cases, three deaths, ship itinerary, response actions, and WHO risk assessment. 2026-05-06ECDC Threat Assessment Brief
European Centre for Disease Prevention and Control
European risk assessment describing seven symptomatic people, Andes virus identification, and recommendations for passenger and crew management. 2026-05-06ECDC Response Activated
European Centre for Disease Prevention and Control
Press release noting ECDC deployment of an expert and describing the risk to the European general population as very low. 2026-05-06Oceanwide Expeditions Press Update
Oceanwide Expeditions
Operator update reporting three medical transfers from m/v Hondius, added onboard medical support, planned onward travel to the Canary Islands, and a Swiss confirmed case. 2026-05-06UKHSA Update
UK Health Security Agency
UK update on British nationals, medical evacuations to the Netherlands, and coordination with WHO and international partners. 2024-05-23CDC Clinical Overview
US Centers for Disease Control and Prevention
Clinical background on hantavirus disease, symptoms, transmission, and testing. 2026-05-06NYT provisional US passenger report
The New York Times
Provisional media report used only for US passenger/residence context until a direct CDC or other US public health source is available. 2026-05-06MedPage Today article
MedPage Today
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-06El Pais article
El Pais
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-06HUG Virus Identification
Geneva University Hospital
Virus identified as the Andes strain of hantavirus 2026-05-06Dutch News article
Dutch News
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-06AP news article
Associated Press
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-06WHO X account
World Health Organization
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-06CBS news article
CBS News
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-07Straits Times article
Straits Times
Provisional media report used until a direct CDC or other US public health source is available. 2026-05-07WHO Response to Hantavirus Cases Linked to Cruise Ship
World Health Organization
WHO response update describing eight cases, five confirmed and three suspected, three deaths, patient movements, Cape Verde medical evacuations, Swiss case confirmation, and response actions. 2026-05-07WHO Director-General Media Briefing Remarks
World Health Organization
WHO Director-General remarks summarizing the Hondius hantavirus outbreak as eight cases, five confirmed and three suspected, with three deaths. 2026-05-04Oceanwide Press Update 4 May 23:30 CET
Oceanwide Expeditions
Operator update describing planned evacuation of two symptomatic individuals plus the individual associated with the guest who died on 2 May. 2026-05-07Oceanwide Press Update 7 May 11:30 CET
Oceanwide Expeditions
Operator update reporting three transferred individuals in care in the Netherlands, two symptomatic and one asymptomatic, and Saint Helena disembarkation nationality counts. 2026-05-07Oceanwide Press Update 7 May 17:15 CET
Oceanwide Expeditions
Operator update confirming Hondius underway to Granadilla, Tenerife, no symptomatic individuals aboard, onboard medical monitoring, provisional 10 May arrival, and updated guest embarkation/disembarkation counts. 2026-05-07CBC news articles
CBC
Provisional media report used until a direct CDC or other US public health source is available.How to read this tracker
This page is a public-facing visualization built from curated source snapshots, not an official case line list. Counts may differ across official updates because definitions, report dates, and laboratory confirmations are changing. When sources differ, WHO/ECDC/public health agency updates are prioritized over media reporting.
Built and maintained with ❤️ by Krisandra Allen and Cristin Young.