Hantavirus cases in Argentiina
Argentiina is one of 14 countries with confirmed cases linked to the 2026 MV Hondius hantavirus outbreak. This page tracks the local count, lists the attributable events, and updates every time the underlying dataset is revised.
Country note
Suspected pre-cruise exposure source for the index case (4-month road trip Nov 2025-Apr 2026 across Chile/Uruguay/Argentina). No domestic cases; investigation ongoing.
Context
The 2026 outbreak is caused by Andes virus (ANDV), the only hantavirus with documented person-to-person transmission. The index event is a cluster aboard the Dutch-flagged cruise ship MV Hondius. Argentiina cases are either:
- Returning passengers or crew of the MV Hondius
- Household or close-contact cases of returning travellers
- Suspected pre-cruise exposures (rare, currently under investigation)
The country's national focal point reports cases up to WHO and ECDC; we update from those publications.
What to watch for if you were on the Hondius or in close contact with a returning traveller.
The 42-day window, ring tiers, and what investigators actually do.
If you're in Argentiina — official guidance
- Public health authority
- Ministerio de Salud — Instituto Malbrán (INEI)
- Current MV Hondius protocol
- Endemic-region protocol — case-by-case management with Patagonia province health authorities.
- Note
- Argentina has the most institutional experience with Andes virus globally (Epuyén 2018-19 framework).
Argentiina — read in another language
Other affected countries
Source & method
Counts on this page come from the same dataset that powers the homepage. Every figure links back to a primary source — WHO Disease Outbreak News, ECDC threat assessments, or a national ministry of health communiqué. Open dataset: /data.
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