The number of patients in a large outbreak of infections from the cyclospora parasite has increased significantly, with the count approaching 600.
The Centers for Disease Control and Prevention has been tracking the outbreak since April 1. As of this week there are 581 laboratory confirmed patients. The previous update from the agency on June 22 had 317 patients listed.
“No specific food items have been identified as the source of most of these illnesses. State and local public health officials are interviewing people with cyclosporiasis to find out what foods they ate before getting sick,” according to the CDC’s outbreak update.

