What is the current probability?

As of the latest cache refresh, the YES contract trades at 1%, implying a 1% chance of YES.

When does this market close?

This market closes on Jun 30, 2026. After close the venue settles the contract based on the official resolution source.

polymarket Health

Hantavirus outbreak by June 30?

Closes Jun 30, 2026 (12d) 24h volume $779 Open interest $38.9K Event Hantavirus outbreak by June 30?

implied YES probability

Price history

Last 38 days · High 22% · Low 1% · 7d -37.8pp · 30d -84.7pp

How this market resolves

This market will resolve to “Yes” if the World Health Organization (WHO) officially declares the hantavirus (or any strain or outbreak of the hantavirus) a Public Health Emergency of International Concern by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. Only a determination that the hantavirus is a Public Health Emergency of International Concern will qualify. Other designations will not be considered. The primary resolution source for this market will be official information from the WHO; however, a consensus of credible reporting may also be used.

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Prediction market data reflects speculative event probabilities, not guaranteed outcomes. This is not investment advice. See Terms §17.