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Kalshi prediction markets are pricing a 30% chance that the U.S. reports at least one human case of New World screwworm by the end of 2026, according to a Fox Weather report published July 22.
The market is tied to a worsening animal-health story. Fox Weather reported that the first U.S. case of New World screwworm in 2026 was recorded on June 3, and that 41 cases have since been reported in domestic animals across two states, citing the USDA.
Active cases are located in Pecos, Brewster, Crockett, Sutton and Starr counties in Texas, the report said. Fox Weather also noted that the parasite was detected in Nuevo León, Mexico, about 90 miles from the U.S. border.
New World screwworm is a parasitic fly whose larvae feed on living tissue in warm-blooded animals and, less commonly, humans. The article said infestations can occur when a female fly lays eggs in wounds or body openings.
For prediction-market followers, the key number is the 30% probability on at least one human U.S. case this year. That does not mean a case is expected, only that the market currently assigns a meaningful chance to the outcome.
The report also cited CDC-linked prevention guidance, including keeping open wounds clean and covered. People with medical conditions that can cause bleeding or open pores, such as eczema, were identified as being at risk.
What to watch next is straightforward: whether USDA case counts in animals continue to rise, whether the affected area in Texas expands, and whether Kalshi’s pricing on a human-case outcome moves as new public-health updates emerge.
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Source: As reported by foxweather.com.
