Washing removes very little of anything from fresh produce. Canada’s Public Health Agency is investigating 51 cases of people infected with the single-celled parasite Cyclospora cayetanensis between mid-May and late-July. Forty-four of the 51 cases reported so far have been in Ontario. The infection can cause watery diarrhea, fatigue, stomach pain Though uncommon in food and drinking water in Canada and the U.S., the parasite often persists on fruit and vegetables even after they have been washed. Public Health Canada recommends that people cook vegetables and fruit imported from Peru, Cuba, India, Nepal, Mexico, Guatemala, Southeast Asia and Dominican Republic. Last week, health officials in Texas also reported a major outbreak of the disease, and are continuing an investigation into fresh produce as a possible source. After a series of outbreaks linked to imported produce from Puebla Mexico in 2015, the U.S. Food and Drug Administration banned imports from the region during summer months. Previous outbreaks of Cyclospora have been linked to pre-packaged salad mix, basil, cilantro, raspberries, blackberries, and snap-peas. At the same time, 148 British tourists have been confirmed with Cyclospora after visiting 24 luxury hotel complexes most of which are in the Riviera Maya resort near Cancun in Mexico. Public Health England are now warning UK tourists to be wary of travelling to Mexico and the Foreign Office have updated their website to include a warning from health authorities about travelling to the region.Finally, some decent risk-based advice from a government agency. Washing will not remove Cyclospora from fresh produce.