Trader consensus on Polymarket heavily favors "No" at 88.5% implied probability for a WHO-declared pandemic in 2026, reflecting the absence of sustained human-to-human transmission for any pathogen reaching global epidemic thresholds midway through the year. Recent WHO Disease Outbreak News highlights a hantavirus cluster on a cruise ship notified May 2, with nine confirmed cases as of May 12, prompting briefings and enhanced surveillance, yet CDC assesses the widespread outbreak risk as low due to limited spread and no evidence of efficient airborne transmission beyond close contacts. Ongoing monitoring of sporadic H5N1 avian influenza human cases—fewer than a dozen globally in 2026—shows no mutations enabling pandemic potential, per official updates. Stalled pandemic treaty talks on May 5 underscore preparedness gaps but no acute threats; weekly ECDC and WHO reports through late May will provide next key data.