American health officials note increasing cyclospora infections. People ingested unsafe iceberg lettuce. The parasite remains on the greens despite washing. Symptoms include watery diarrhoea, stomach cramps as well as exhaustion. Some cases last weeks. New cases are emerging in several states. The CDC and FDA say throw away any suspect lettuce now. Stay away from raw salads with iceberg lettuce for now. Restaurants must remove it from menus at once.