Surveillance

Latest official outbreak snapshot

Agency pages only. Not medical advice.

M/V Hondius Andes virus cluster

Cases (reported)

13

Confirmed

11

Probable

2

Deaths

3

As of May 26, 2026ECDCWHO (27 May report)

ECDC daily surveillance (figures as of 14:00 on the headline date): as of 26 May 2026, thirteen cases (eleven confirmed, two probable, zero suspected) and three deaths; one new case and no new deaths since the prior ECDC update; page last updated 26 May at 15:00. WHO DON604, published 28 May with data as of 27 May, reports thirteen cases (eleven laboratory-confirmed ANDV, two probable), three deaths (two confirmed cases, one probable case), case fatality ratio 23%, and all cases to date among passengers or crew aboard M/V Hondius.

WHO contact tracing
600+
contacts identified across 32 countries, territories and areas
WHO DON604: as of 22 May 2026, more than 600 contacts were under close monitoring or self-monitoring.
United States
0
confirmed Andes cases linked to this outbreak
CDC current situation, 2 June 2026: 18 potentially exposed people were repatriated; 13 remained at Nebraska Quarantine Unit, 5 continued monitoring at home, and all remained symptom-free.
Canada
1
confirmed Andes case in Canada
PHAC page details, 27 May 2026: the case was confirmed on 17 May and was among passengers on M/V Hondius.

United States
890
CDC national total through 2023.
Canada
168
PHAC national total since active surveillance began in 1994, as of 1 May 2026.
Americas (HPS)
Cases
229
Deaths
59
PAHO/WHO, through EW47 2025.

Links to every agency page are in Sources at the bottom of this page.

Think you may have been exposed?

If you cleaned a rodent-infested space, handled rodents as part of your job, or spent time where droppings or nests were disturbed and you later develop fever, muscle aches, headache, or trouble breathing, treat it as urgent. CDC advises seeking medical care immediately and mentioning possible rodent exposure.

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What is hantavirus?

History, strains, and how surveillance works.

How it spreads

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Symptoms

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May 2026 outbreak

WHO and ECDC timeline for the cruise cluster.

News

Short updates with citations.

Why this site exists

Search results can mix speculation with reliable guidance. Each page here ties statements to dated agency publications so you can verify wording quickly. When guidance conflicts between agencies or dates, we say so and link both sources, as with the May 2026 cruise-ship cluster and ongoing international monitoring summarized on the outbreak page.

Sources

Facts on this page are drawn only from the authorities below. Check the original pages for the most current wording and updates.

CDC — About Hantavirus (source date or page note: May 13, 2024)
CDC — Hantavirus Prevention (source date or page note: May 13, 2024)
CDC — Reported Cases of Hantavirus Disease (source date or page note: Apr. 23, 2026)
WHO — Hantavirus fact sheet (source date or page note: Fact sheet (page as retrieved))
WHO Disease Outbreak News — Hantavirus cluster linked to cruise ship travel (multi-country) (source date or page note: May 4, 2026 (updated May 5, 2026 per WHO note))
ECDC — Andes hantavirus outbreak in cruise ship (surveillance and updates; page last updated 26 May 2026 at 15:00) (source date or page note: 26 May 2026 data cut per ECDC daily page (13 cases: 11 confirmed, 2 probable, 0 suspected; 3 deaths))
WHO Disease Outbreak News — Hantavirus outbreak linked to cruise ship travel (multi-locations), fourth report (source date or page note: 28 May 2026 (WHO citation date; report data as of 27 May 2026))
ECDC assessment — Hantavirus-associated cluster of illness on a cruise ship (source date or page note: May 6, 2026)
ECDC — Hantavirus infection, Annual Epidemiological Report for 2023 (source date or page note: Surveillance data through 2023 (report published March 2025))