HantaVirusTests

Official outbreak signal

Cruise Ship Hantavirus Cluster

WHO reported a multi-country Andes virus cluster linked to MV Hondius cruise ship travel, with international contact tracing and a low global population risk assessment.

What WHO reported on 13 May 2026

  • A total of 11 reported cases, including three deaths.
  • Eight laboratory-confirmed Andes virus infections, two probable cases, and one inconclusive case undergoing further testing.
  • International Health Regulations channels and National IHR Focal Points supporting contact tracing.
  • WHO assessed the risk to the global population as low while continuing to monitor the situation.

Why this cluster matters

The cluster combines several radar drivers: recency, severe outcomes, Andes virus, possible subsequent human-to-human transmission onboard, and international coordination.

What it does not prove

This official report does not mean hantavirus is spreading broadly in the general population or that the radar is declaring a pandemic.

Last updated

2026-05-16

Editorial review

Editorially reviewed against WHO and CDC public-health sources. No clinician medical-review claim is made.

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Medical sources

WHO DON 601: MV Hondius cluster, 13 May 2026WHO hantavirus fact sheetWHO Disease Outbreak NewsCDC hantavirus overviewCDC clinical overviewCDC prevention guidance

Educational information only. This site does not diagnose, treat, or replace professional medical care.