The patient count for the ongoing Cyclospora outbreak is now more than 16 times greater than that of the total for 2025.
Since May 1, the Centers for Disease Control and Prevention has received reports of 19,595 laboratory-confirmed cases of cyclosporiasis acquired in the United States. For the 2025 season there were 1,180 confirmed cases.
Also, the CDC is aware of 6,149 additional cases of cyclosporiasis, which include those that are not laboratory confirmed, or are pending patient interview and submission.
The official Cyclospora season ended Aug. 31, but additional cases will be added to the total count because it can take up to six weeks for testing, diagnosis and reporting to be completed.
The 19,595 cases reported overall include patients in a 20-state outbreak linked to iceberg lettuce traced to a Taylor Farms growing and processing operation in Central Mexico. For that outbreak, the CDC has confirmed 11,458 patients with 990 hospitalizations and two deaths. Therefore, there are 8,137 patients with infections of unknown origin.
States are keeping their own tallies, with the total now standing at 33,548 cases this season.
State health departments count what their own laboratories and providers report to it, usually in the week they report it. Several states, Ohio, Iowa, Kansas, Arkansas and Kentucky among them, count on a calendar year rather than on the season, so their totals carry illnesses from January through April. Some include probable cases and cases still pending classification. The CDC excludes both.
Michigan was the first state to begin reporting numbers for the outbreak. As of Sept. 3, the state was reporting 14,718 patients with 366 hospitalizations and two deaths. The state has stopped its weekly updates and will instead post new numbers on a monthly basis. Nine states have not published any statistics for this year.
State2026 casesAs ofCDC Aug 27All of 2025LettuceTaylor FarmsMichigan14,718Sep 34,84650YesLinkedOhio5,452Aug 132,67976YesLinkedMissouri2,152Aug 231,010none reportedYesLinkedIndiana2,104Sep 282327YesLinkedIllinois1,437Aug 18278301YesLinkedNorth Carolina955Sep 12300YesLinkedNew York939Aug 170694YesUnknownKansas829Aug 2633129YesLinkedKentucky819Aug 1232945YesLinkedOklahoma556Aug 2524141YesLinkedFlorida450Aug 150210YesUnknownIowa327Aug 2013064YesLinkedTexas315Aug 1120512YesLinkedWest Virginia315Sep 41608YesLinkedArkansas287Aug 258213YesLinkedWisconsin284Aug 26065YesUnknownVirginia242Aug 310115YesUnknownNebraska218Aug 619951YesLinkedPennsylvania214Aug 11244not notifiableYesLinkedColorado150Jul 170205NoUnknownMassachusetts147Aug 51874YesLinkedNew Hampshire94Aug 25427YesLinkedAlabama85Aug 3019YesUnknownWashington76Aug 280not availableMay haveTravel linkMaryland69Jul 170123YesNo link foundNew Jersey46Jul 110180YesUnknownTennessee44Jul 16538YesLinkedCalifornia41Jul 140not availableMay haveUnknownMinnesota41Jul 170none reportedNoUnknownConnecticut35Jul 17041YesUnknownMaine27Aug 7164YesLinkedOregon23Jul 240not availableNoTravel linkArizona19Jul 17049NoUnknownGeorgia11Jul 173116YesLinkedMississippi7Jul 220not notifiableYesUnknownHawaii6Aug 260not availableNoNo link foundAlaska5Jul 1606NoUnknownRhode Island4Jul 1706May haveNo link foundSouth Dakota3Jul 1603May haveUnknownLouisiana1Jul 17099YesUnknownUtah1Jul 17037NoNo link foundDelawareno count published—01May haveUnknownIdahono count published—0not notifiableNoUnknownMontanano count published—08NoUnknownNevadano count published—0not notifiableNoUnknownNew Mexicono count published—09NoNo link foundNorth Dakotano count published—04May haveUnknownSouth Carolinano count published—045YesUnknownVermontno count published—03May haveUnknownWyomingno count published—00NoUnknownAll fifty states33,548 11,458 3120
