The cyclosporiasis outbreak in the US is increasing concerns about food safety as health authorities investigate potential sources of infection. Cyclosporiasis is an intestinal disease caused by the Cyclospora parasite and can occur after consuming food or water contaminated with human faeces. Foodborne disease cases climbMichigan health officials reported 9,680 cases of cyclosporiasis on 28 July, including 160 hospitalisations and no deaths. The Centers for Disease Control and Prevention is monitoring the outbreak, while investigators continue to examine possible exposure sources. Produce sales and public health impactConsumer concerns have affected restaurant visits and fresh lettuce sales.