State of the Cyclosporiasis Outbreak

Lena H. Sun, Washington Post national reporter focusing on health, provides an update on the nationwide cyclosporiasis outbreak and the response from U.S. public health agencies.

Photo: Spinach is displayed for sale on shelves at a Target store on July 23, 2026 in Austin, Texas. The cyclosporiasis outbreak, an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis, has spread across multiple states and remains under investigation by federal health officials after the first known illness onset was reported in early May. (Brandon Bell/Getty Images)