Measles cases in 2026?
5 markets · 5mo
Markets assign a high probability to cases exceeding 3,000 in 2026 but a low probability of exceeding 4,000, pointing to a consensus that a moderate outbreak—likely localized—will push totals into this narrow band for the first time since elimination.
📊 Base rate: Since the US declared measles eliminated in 2000, annual cases have never surpassed 1,282 (the 2019 peak), so the current odds for >3,000 (91% Yes) imply a dramatic departure from any historical precedent.
What's driving it
- • No specific recent news headlines are provided, but the sharp drop in probability between the >3,000 (91% Yes) and >4,000 (61% No) markets reveals a strong market view that cases will cluster just above 3,000, likely due to a contained outbreak scenario.
- • The market's near-consensus on <10,000 (93% No) suggests a belief that public health interventions will prevent uncontrolled spread, despite a base of high susceptibility in under-vaccinated communities.
The bullish case
- • Vaccination rates below the herd-immunity threshold in several states create a large pool of susceptible individuals, capable of sustaining a multi-state outbreak into the thousands.
- • A single large, prolonged outbreak in a densely populated area (e.g., a major city with low vaccination coverage) could rapidly drive case counts above 3,000 before containment efforts take effect.
- • Seasonality of measles peaks in late spring and early summer; with the current date in July, the tail end of peak transmission could already have pushed case counts high, and ongoing spread might sustain numbers through the year.
The bearish case
- • Historical precedent from 2019—the worst recent outbreak—yielded only 1,282 cases despite widespread exposure in undervaccinated communities, making a jump to >4,000 unlikely without a dramatic change in transmission dynamics.
- • The odds reflect a belief that robust public health responses (contact tracing, vaccination campaigns, travel advisories) will be triggered quickly once case counts begin to rise, capping the total below 4,000.
- • Herd immunity through natural infection and vaccination from prior outbreaks in the 2019–2025 period may have reduced the pool of susceptible individuals below the level needed for sustained chains of transmission exceeding 4,000 cases.
What to watch
- • Weekly CDC Morbidity and Mortality Weekly Report (MMWR) every Thursday—if cumulative cases accelerate above the 3,000 threshold, odds for >4,000 could rise sharply.
- • Start of the school year in August/September 2026, as outbreaks often propagate in school settings, potentially driving cases higher and shifting probability mass toward the upper thresholds.
- • Any announcement of a new vaccine mandate or federal intervention (e.g., emergency funding) before fall could strengthen the No case by signaling aggressive containment.
AI-generated · grounded in recent news + odds · informational only, not advice. Verify on the source platform.
Markets in this event
Will there be more than 3000 measles cases in 2026? — Above 3000
Yes ≈ 90% chance
Will there be more than 8000 measles cases in 2026? — Above 8000
Despite headlines showing measles cases are climbing and on track to surpass last year's total, the market prices a mere 12% chance of exceeding 8,000 cases in 2026, indicating traders see a massive gap between current outbreak trends and that high threshold.
Yes ≈ 8% chance
Will there be more than 6000 measles cases in 2026? — Above 6000
Despite a rise in measles cases that is on track to exceed last year's total, the threshold of 6,000 cases remains extremely unlikely given that even the worst recent year (2019) saw only 1,282 cases, explaining the 85% No odds.
Yes ≈ 15% chance
Will there be more than 4000 measles cases in 2026? — Above 4000
The market sees a 39% chance of exceeding 4,000 measles cases in 2026, but this is not just about raw counts—it reflects uncertainty over whether the current record-breaking pace (already surpassing all of 2025) will continue or slow, with hot spots in seven states driving the surge (Axios, Jul 25).
Yes ≈ 39% chance
Will there be more than 10000 measles cases in 2026? — Above 10000
Despite a 94% No probability, the real story is that 2026 measles cases are already set to surpass last year's total (ABC News, Jul 17), with multiple localized outbreaks and a year-long battle in Utah (PBS, Jun 20), suggesting the risk is higher than the odds imply.
Yes ≈ 7% chance
Data from Kalshi’s public API, for informational purposes only. PredictPal is not affiliated with any platform and does not facilitate trading.
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