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Hantavirus vaccine in 2026?

2% say yes

Down 2 points today.

Decided by fda.gov, by December 31, 2026, 11:59 PM .

Each share pays $1 if it happens, so 2¢ means about a 2% chance.

Research, not financial advice. Prices from Polymarket’s international site, not available in the US.

The short version

If that hasn’t happened by the deadline (December 31, 2026, 11:59 PM ET), the answer is No.

Possible results

  • YesThe event in the question happens before the deadline.2%

    What has to happen

    Any vaccine intended for humans and inoculating against Hantavirus (including Hantavirus Pulmonary Syndrome (HPS) or Hemorrhagic Fever with Renal Syndrome (HFRS)) receives full approval from the U.S.

  • NoThe deadline passes without it happening.98%

    What has to happen

    That doesn’t happen by December 31, 2026, 11:59 PM ET.

The one trap

The rules don’t list special cases like delays or cancellations. The venue’s own rules decide anything unusual.

Price chart
-Yes chance

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View rules on Polymarket (international site, not available to US residents)

Show details for experienced traders

The details

Rule note: the condition as writtenSettled by fda.gov
Fine-print risk
Low (20/100)
settles on the condition as written
  • Official source: settlement runs on fda.gov (fda.gov); credible reporting may also be used. No recorded moves for this market yet.
  • Fine print: It settles on the condition as written, with a deadline in New York time (ET). Deadline: Thu, Dec 31, 2026, 11:59 PM ET.

Source named: fda.gov (not a tracked official feed, no release history)

Standardized read of public order book, official-source and contract-rule data, identical for every viewer. It describes the data and is not a recommendation. The venue’s published rules control settlement.

Key lines from the rules (Polymarket)
  • “This market will resolve to "Yes" if any vaccine intended for humans and inoculating against Hantavirus (including Hantavirus Pulmonary Syndrome (HPS) or Hemorrhagic Fever with…”
  • “The primary resolution source for this market will be official information from the FDA, including its list of approved vaccines (https://www.fda.gov/vaccines-blood-biologics/vaccines/vaccines-licensed-use-united-states), however a consensus of…”
  • “Otherwise, this market will resolve to "No".”

View rules on Polymarket (international site, not available to US residents)

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