United States
Provisional residence-country presence only. Oceanwide listed 17 guests of this nationality onboard as of 8 May.
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
Case details
Linelist
| Onset Date | Status | Age/Sex | Outcome | Residence | Notes |
|---|---|---|---|---|---|
| Apr 6 | probable | 70 / M | deceased | Netherlands | Boarded the ship on 1 April, after more than three months of travel in Argentina, Chile, and Uruguay. |
| Apr 24 | confirmed | 69 / F | deceased | Netherlands | Close contact of case 1, who travelled and boarded the ship with him, went ashore at Saint Helena on 24 April with gastrointestinal symptoms. |
| Apr 24 | confirmed | M | hospitalized ICU | United Kingdom | He was disembarked and medically evacuated from Ascension Island on 27 April and is currently hospitalised in an Intensive Care Unit (ICU) in Johannesburg, South Africa. |
| Apr 27 | confirmed | M | stable | Netherlands | Worked as a ship guide. Onset of symptoms was reported on 27 April with mild respiratory and gastrointestinal symptoms. |
| Apr 28 | confirmed | F | deceased | Germany | Onset of symptoms (fever and general malaise) on 28 April, later presenting with pneumonia, died on 2 May. |
| Apr 28 | probable | M | stable | United Kingdom | Disembarked in Tristan da Cunha on 14 April. Onset of symptoms was reported on 28 April with diarrhoea and two days later with fever. |
| Apr 30 | confirmed | M | stable | United Kingdom | Worked as the ship doctor, reported onset of symptoms on 30 April, including fever, fatigue, muscle pain, and mild respiratory symptoms. |
| May 1 | confirmed | M | hospitalized | Switzerland | Disembarked in St Helena on 22 April and flew back to Switzerland on 27-28 April, through South Africa and Qatar. He started experiencing symptoms on 1 May |
Case definitions
WHO/ECDC classification reference
Confirmed case: A person who meets the criteria above and has tested positive for Andes hantavirus in a laboratory test.
Probable case: A person who has the same symptoms as above and has had close contact with someone who is known or likely to have Andes hantavirus.
Suspected case: A person who has been on the same transport as someone with Andes hantavirus, and has a fever plus at least one of these symptoms: muscle aches, chills, headache, stomach problems (like nausea or diarrhoea) or breathing problems.
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. Oceanwide listed 4 guests of this nationality onboard as of 8 May.
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, and listed 1 guest of this nationality onboard as of 8 May.
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, and listed 3 guests of this nationality onboard as of 8 May.
Philippines
Argentina
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Argentina.
Australia
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Australia.
Italy
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Italy.
Japan
Residence-country shading uses reported onboard nationality presence only; no case is assigned to Japan.
Official updates first
Sources
2026-05-08
WHO DON 600
WHO
2026-05-08Oceanwide Expeditions, 2026-05-08
Oceanwide Expeditions
2026-05-08ECDC Page
ECDC
ECDC Update Page 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. 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. 2026-05-07Oceanwide 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. 2026-05-06ECDC 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. 2026-05-06HUG 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. 2026-05-04WHO Disease Outbreak News
World Health Organization
Initial Disease Outbreak News report describing seven cases, three deaths, ship itinerary, response actions, and WHO risk assessment. 2026-05-04Oceanwide 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. 2024-05-23CDC Clinical Overview
US Centers for Disease Control and Prevention
Clinical background on hantavirus disease, symptoms, transmission, and testing. 2026-05-08California DPH
California DPH
CDPH reports at least 2 Californians; 1 back in CA and at least 1 still on the ship 2026-05-10Oceanwide Expeditions, 2026-05-10
Oceanwide Expeditions
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.