(Centers for Disease Control and Prevention)(WASHINGTON) — Cases of cyclosporiasis, an intestinal illness caused by a parasite, have topped 18,000 in 45 states, according to updated data Wednesday from the Centers for Disease Control and Prevention. Since May 1, at least 6,707 cases have been laboratory-confirmed, including 423 hospitalizations, the CDC noted. Many of these additional cases have been reported by Michigan and Ohio, which have linked the bulk of their cases to now recalled iceberg lettuce. The CDC notes that this parasite typically spikes in the summer months, so other states could be seeing cases tied to other sources. Earlier this month, Taylor Farms de Mexico issued a voluntary recall of all iceberg lettuce sourced from central Mexico, with the recall affecting 27 states.