Will there be at least 2200 measles cases in the U.S. by June 30, 2026?

As of May 28, CDC reports 1,983 confirmed 2026 cases with recent weekly additions of only 5-42; reaching 2,200 requires ~217 more in ~33 days at current low rates, which is improbable without an unprecedented surge. No single actors control case counts (natural epidemiology + reporting lags), and no behavioral red flags exist. Base rate and trajectory strongly support No resolving.

CDC counter shows exactly 1,983 confirmed 2026 cases as of May 28 (market open date); weekly incidence has fallen to single digits in the most recent reported week and shows no acceleration. Reaching 2,200 requires >210 additional cases in the final ~28 days, which exceeds any plausible continuation of current trends and contradicts the explicit CDC source rule. No resolver updates or attribution ambiguities exist; default-No burden is satisfied by the data gap.

Market at 80% No with ~$4K volume on this bin (total ~$11K, opened ~May 28) shows thin but unchallenged liquidity; recent price action (Yes +3pp) is minor and consistent with slow case growth (~5/day recently from CDC's 1,983 as of May 28). Smart-money whale on Yes is real (high lifetime PnL) but stake is only $10, insufficient to signal opposition at >0.7 effective weight. No whale flow, sibling-bin drift, or volume surge against No; low weekly volume fits a consensus hold rather than an ignored edge.