Odaily Seer monitoring shows that Polymarket has launched a market asking “Will there be a confirmed case of hantavirus in the U.S. before May 15?”, with the probability of “Yes” currently at 27%, and the market’s trading volume has reached $139,700.
The settlement rule for this event is: if any laboratory-confirmed hantavirus infection case is reported within the United States between the market creation date and 11:59 PM Eastern Time on May 15, 2026, the market will resolve as "Yes." The determination is not limited by the location of infection and primarily relies on official government sources such as the CDC or other widely recognized credible reports.
Although there has been a cluster of hantavirus infections on the MV Hondius cruise ship recently and the CDC is monitoring returning travelers, the United States has not reported any federally confirmed cases since 2026.
Odaily Seer continuously monitors prediction markets to see changes before pricing.
