Polymarket and Kalshi launch health crisis contracts including measles bets
Prediction market platforms Polymarket and Kalshi are now offering contracts tied to U.S. public health crises. The contracts include measles outbreaks, vaccine mandates, and drug trials. Experts have warned of risks associated with hosting bets on these topics. The Guardian reported the development on Friday, November 14, 2026. Specific regulatory or public health concerns were not detailed in available coverage. The move expands both platforms' offerings beyond politics and entertainment into health-related events.
Regulated prediction platforms are racing into health contracts just as their core political and sports products face intensifying scrutiny. The CFTC's proposed swaps rule could force product restructuring within months. State attorneys general are already probing event contracts on sports and elections. Health topics carry an additional reputational risk: a measles outbreak resolved by public health intervention could look like market manipulation to critics.
Polymarket and Kalshi have both invested in pop-culture contracts recently. Neither has proven these new verticals convert to sustainable profit. Flutter's FanDuel Predicts and Robinhood are also burning cash to catch up. The platform that first stumbles on a socially sensitive contract provides opponents with ammunition for federal or state crackdowns.