Oklahoma has logged 56 lab-confirmed cyclosporiasis cases in 2026, including 25 in the week ending July 11, with one additional probable case under investigation.
Six hospitalizations have been reported and no deaths, as the intestinal parasite Cyclospora spreads seasonally through spring and summer, often via contaminated fresh produce.
CDC data show more than 1,645 cases and 141 hospitalizations across 34 states since May 1; Oklahoma had 11 cases in the federal tally through July 4, before the state's latest surge.
Health officials say infections are commonly linked to unwashed herbs, leafy greens and berries, with symptoms led by watery diarrhea, fatigue, nausea and dehydration.