American health officials announce more cyclospora infections. People ingested contaminated iceberg lettuce. The parasite remains on the greens regardless of washing. Symptoms comprise watery diarrhoea, stomach cramps as well as exhaustion. Some cases last weeks. New cases are emerging in multiple states. The CDC and FDA say throw away any questionable lettuce now. Skip raw salads with iceberg lettuce for now. Restaurants must remove it from menus immediately.