The Brief A cyclosporiasis outbreak linked to iceberg lettuce has sickened 1,947 people across nine states, with Pennsylvania recently added to the list with 24 confirmed cases. They join Indiana, Kentucky, Michigan, Ohio and West Virginia for a total of nine states with reported cyclosporiasis cases from the outbreak. The CDC says at least 1,947 people are currently sick across those states, with 24 cases reported in Pennsylvania. The backstory:Cyclosporiasis is a gastrointestinal disease caused by the microscopic parasite cyclospora. Related articleOn July 17, Taylor Farms initiated a recall of all iceberg lettuce sourced from central Mexico.