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Last update
10 Jun 2026 · 10:46 UTC
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2026 MV Hondius Andes virus outbreak

Active
Mar 29, 2026 – OngoingArgentinaSpecies: Andes

About this outbreak

Andes virus (Orthohantavirus andesense) cluster seeded aboard the Dutch-flagged expedition cruise ship MV Hondius, which departed Ushuaia, Argentina with 147 people from 23 countries. The index case — a 70-year-old Dutch passenger likely exposed in Patagonia before boarding — died at sea, and onward person-to-person transmission (a hallmark of Andes virus) carried confirmed and suspected cases to more than a dozen countries through disembarkations, port calls, and medical evacuations.

Outbreak story

Editorial

A curated, narrated reconstruction of how this outbreak unfolded — editorial, not live surveillance. Each point links to its source.

Epidemic curve

Daily new confirmed cases and deaths over time, with a 7-day trailing average and cumulative totals.

Mar 29, 2026 – Jun 10, 2026

Cases in range

23

Deaths in range

3

Peak daily cases

3 on May 8

Daily new cases

  • Daily
  • 7-day average
530
Mar 29May 4Jun 10
Daily new cases
DateDaily7-day average
Mar 29, 202600
Mar 30, 202600
Mar 31, 202600
Apr 1, 202610.3
Apr 2, 202600.2
Apr 3, 202600.2
Apr 4, 202600.1
Apr 5, 202600.1
Apr 6, 202600.1
Apr 7, 202600.1
Apr 8, 202600
Apr 9, 202600
Apr 10, 202600
Apr 11, 202610.1
Apr 12, 202600.1
Apr 13, 202600.1
Apr 14, 202600.1
Apr 15, 202600.1
Apr 16, 202600.1
Apr 17, 202600.1
Apr 18, 202600
Apr 19, 202600
Apr 20, 202600
Apr 21, 202600
Apr 22, 202600
Apr 23, 202600
Apr 24, 202620.3
Apr 25, 202600.3
Apr 26, 202610.4
Apr 27, 202610.6
Apr 28, 202600.6
Apr 29, 202600.6
Apr 30, 202600.6
May 1, 202600.3
May 2, 202610.4
May 3, 202600.3
May 4, 202600.1
May 5, 202610.3
May 6, 202620.6
May 7, 202620.9
May 8, 202631.3
May 9, 202601.1
May 10, 202611.3
May 11, 202631.7
May 12, 202611.7
May 13, 202601.4
May 14, 202601.1
May 15, 202600.7
May 16, 202600.7
May 17, 202610.7
May 18, 202600.3
May 19, 202600.1
May 20, 202600.1
May 21, 202600.1
May 22, 202600.1
May 23, 202600.1
May 24, 202610.1
May 25, 202600.1
May 26, 202600.1
May 27, 202600.1
May 28, 202600.1
May 29, 202600.1
May 30, 202600.1
May 31, 202600
Jun 1, 202610.1
Jun 2, 202600.1
Jun 3, 202600.1
Jun 4, 202600.1
Jun 5, 202600.1
Jun 6, 202600.1
Jun 7, 202600.1
Jun 8, 202600
Jun 9, 202600
Jun 10, 202600

Daily new deaths

  • Daily
  • 7-day average
1 0
Mar 29May 4Jun 10
Daily new deaths
DateDaily7-day average
Mar 29, 202600
Mar 30, 202600
Mar 31, 202600
Apr 1, 202600
Apr 2, 202600
Apr 3, 202600
Apr 4, 202600
Apr 5, 202600
Apr 6, 202600
Apr 7, 202600
Apr 8, 202600
Apr 9, 202600
Apr 10, 202600
Apr 11, 202610.1
Apr 12, 202600.1
Apr 13, 202600.1
Apr 14, 202600.1
Apr 15, 202600.1
Apr 16, 202600.1
Apr 17, 202600.1
Apr 18, 202600
Apr 19, 202600
Apr 20, 202600
Apr 21, 202600
Apr 22, 202600
Apr 23, 202600
Apr 24, 202600
Apr 25, 202600
Apr 26, 202610.1
Apr 27, 202600.1
Apr 28, 202600.1
Apr 29, 202600.1
Apr 30, 202600.1
May 1, 202600.1
May 2, 202610.3
May 3, 202600.1
May 4, 202600.1
May 5, 202600.1
May 6, 202600.1
May 7, 202600.1
May 8, 202600.1
May 9, 202600
May 10, 202600
May 11, 202600
May 12, 202600
May 13, 202600
May 14, 202600
May 15, 202600
May 16, 202600
May 17, 202600
May 18, 202600
May 19, 202600
May 20, 202600
May 21, 202600
May 22, 202600
May 23, 202600
May 24, 202600
May 25, 202600
May 26, 202600
May 27, 202600
May 28, 202600
May 29, 202600
May 30, 202600
May 31, 202600
Jun 1, 202600
Jun 2, 202600
Jun 3, 202600
Jun 4, 202600
Jun 5, 202600
Jun 6, 202600
Jun 7, 202600
Jun 8, 202600
Jun 9, 202600
Jun 10, 202600

Cumulative totals

  • Cumulative cases
  • Cumulative deaths
50250
Mar 29May 4Jun 10
Cumulative totals
DateCumulative casesCumulative deaths
Mar 29, 202600
Mar 30, 202600
Mar 31, 202600
Apr 1, 202610
Apr 2, 202610
Apr 3, 202610
Apr 4, 202610
Apr 5, 202610
Apr 6, 202610
Apr 7, 202610
Apr 8, 202610
Apr 9, 202610
Apr 10, 202610
Apr 11, 202621
Apr 12, 202621
Apr 13, 202621
Apr 14, 202621
Apr 15, 202621
Apr 16, 202621
Apr 17, 202621
Apr 18, 202621
Apr 19, 202621
Apr 20, 202621
Apr 21, 202621
Apr 22, 202621
Apr 23, 202621
Apr 24, 202641
Apr 25, 202641
Apr 26, 202652
Apr 27, 202662
Apr 28, 202662
Apr 29, 202662
Apr 30, 202662
May 1, 202662
May 2, 202673
May 3, 202673
May 4, 202673
May 5, 202683
May 6, 2026103
May 7, 2026123
May 8, 2026153
May 9, 2026153
May 10, 2026163
May 11, 2026193
May 12, 2026203
May 13, 2026203
May 14, 2026203
May 15, 2026203
May 16, 2026203
May 17, 2026213
May 18, 2026213
May 19, 2026213
May 20, 2026213
May 21, 2026213
May 22, 2026213
May 23, 2026213
May 24, 2026223
May 25, 2026223
May 26, 2026223
May 27, 2026223
May 28, 2026223
May 29, 2026223
May 30, 2026223
May 31, 2026223
Jun 1, 2026233
Jun 2, 2026233
Jun 3, 2026233
Jun 4, 2026233
Jun 5, 2026233
Jun 6, 2026233
Jun 7, 2026233
Jun 8, 2026233
Jun 9, 2026233
Jun 10, 2026233

OutbreakIndex is an independent project and is not affiliated with WHO, CDC, ECDC, PAHO, or ProMED. All content is aggregated from public sources and is general information — not medical advice, and not a substitute for assessment by a qualified clinician.

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