US health officials report increasing cyclospora infections. People ingested unsafe iceberg lettuce. The parasite clings on the greens regardless of washing. Symptoms include watery diarrhoea, stomach cramps as well as exhaustion. Some cases continue weeks. New cases are emerging in various states. The CDC and FDA say toss any risky lettuce now. Avoid raw salads with iceberg lettuce for now. Restaurants must take out it from menus at once.