Health officials identify source of US explosive diarrhoea outbreak BBCLettuce Supplier Linked to Cyclospora Outbreak Is a Global Salad Giant WSJFDA says sample of iceberg lettuce supplied by Taylor Farms tested positive for US parasite outbreak ReutersExplosive diarrhea outbreak: Lettuce tests positive for cyclospora, FDA says NewsNationCyclospora: iceberg lettuce recalled in 27 states and more products may follow The Guardian