Parasites in fresh leafy vegetables : April 1, 2014 – March 31, 2016

Abstract

A targeted survey of 2,233 samples of leafy vegetables for parasites found 98.8% to be satisfactory. Samples were analyzed for Cyclospora cayetanensis, Cryptosporidium spp., Toxoplasma gondii, and Giardia spp. Two samples contained parasite DNA of Cryptosporidium spp. and three samples contained Toxoplasma gondii DNA. Cyclospora cayetanensis DNA was detected in six samples and Giardia spp. DNA was detected in fifteen samples. Due to methodology limitations and the perishable nature of the products, the time elapsed between sample pick up and the completion of analysis, implicated products were no longer available on the market when the parasite DNA was detected. As such, no direct product action was possible. No illnesses were reported in association with any of the positive samples.