Will there be at least 10000 measles cases in the U.S. in 2026?

Prediction markets put the probability at 6%: Will there be at least 10000 measles cases in the U.S. in 2026. Currently, markets see this as unlikely (6% YES). Measles cases in 2026 are set to surpass last year's total.

What’s Happening

As of July 24, 2026, the U.S. Centers for Disease Control and Prevention (CDC) has logged 2,318 confirmed measles cases for the year, surpassing the 2,289 cases recorded in all of 2025, which was itself the highest annual total in more than three decades. This milestone makes 2026 the worst year for measles in the U.S. since 1991, according to data from both the CDC and a Johns Hopkins University tracker that compiles local and state health reports. With more than five months remaining in the calendar year, the pace of infections shows no sign of slowing, and public health officials have noted that the current trajectory could threaten the nation's elimination status, which was officially declared in 2000. [Washington Post, Jul 21]

The rapid accumulation of cases in 2026 has shifted the public health conversation toward the possibility of there being at least 10000 measles cases in the U.S. in 2026, a threshold that would represent a fourfold increase over the current count. The 2,295 cases reported by Johns Hopkins as of July 22 already exceeded the full-year 2025 total, and the CDC's subsequent update on July 24 added another 23 cases in just two days. Health specialists interviewed by ABC News attribute the surge to a combination of declining vaccination rates, increased international travel, and community transmission clusters, though they caution that the final tally will depend heavily on fall and winter transmission patterns. [ABC News, Jul 17]

The question of whether there be at least 10000 measles cases in the U.S. in 2026 remains open, but the current data suggests a challenging road ahead. The 2,318 cases recorded through late July represent a pace of roughly 11 cases per day since the start of the year, which would project to approximately 4,000 cases by December if that rate holds. However, measles transmission typically peaks in late spring and early summer, and the 35-year record already set in 2026 has prompted the CDC to intensify surveillance and outbreak response efforts. Public health officials are monitoring whether the current wave will plateau or accelerate in the coming months, with the next key data point expected in the agency's weekly update in early August. [Fox News, Jul 24]

Traded on Polymarket — $6.5M Volume

Active market on Polymarket with $6.5M in total volume. Sufficient liquidity for most position sizes. Currently priced at 6c YES.