Tracker documentation

Current Hantavirus Outbreak Situation

Current source-led Andes virus outbreak status, case categories, source reconciliation, risk framing, and links to public-health sources.

Last reviewed: May 15, 2026Data last checked: May 15, 2026, 17:20 UTCReport a correction

Situation at a glance

Total reported cases11ECDC - source date 2026-05-15
Confirmed cases8ECDC - source date 2026-05-15
Probable cases2ECDC - source date 2026-05-15
Suspected cases0ECDC - source date 2026-05-15
Inconclusive cases1ECDC - source date 2026-05-15
Deaths3ECDC - source date 2026-05-15

Last checked: May 15, 2026, 17:20 UTC. Latest source update: ECDC daily outbreak page, May 15, 2026, data as of 14:00. Headline counts use the latest reviewed ECDC page and are consistent with WHO DON601 for total, confirmed, probable, inconclusive, and death counts.

Source reconciliation

ECDC is the most current source checked for the headline count on this build because its outbreak page is dated May 15, 2026 and says the data reflect the situation as of 14:00. WHO DON601, dated May 13, reports the same 11 total cases and the same status split. CDC's current situation page focuses on U.S. response and risk; it states that no cases of Andes virus have been confirmed in the United States as a result of this outbreak.

Earlier CDC HAN and WHO DON600 counts remain in the changelog and timeline because they explain how the public record changed. They are not used as the current headline count when a newer official source reports a later source date.

Risk framing

For the general public and travelers outside the ship or close-contact context, official sources assess broad risk as low, very low, or extremely low depending jurisdiction. WHO assesses global risk as low. ECDC says EU/EEA general-population risk remains very low. CDC says the overall risk to the American public and travelers remains extremely low.

People who were onboard the ship, exposed passengers, high-risk contacts, or people contacted by public-health officials should follow the instructions from clinicians and public-health authorities. This tracker does not assign individual exposure risk.

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Primary sources reviewed

CDC, WHO, and ECDC official public-health pages were reviewed for this build. Current outbreak counts use official outbreak updates; evergreen pages use official background and guidance pages.