American health officials report increasing cyclospora infections. People ingested unsafe iceberg lettuce. The parasite clings on the greens despite washing. Symptoms include watery diarrhoea, stomach cramps and exhaustion. Some cases persist weeks. New cases are popping up in various states. The CDC and FDA say throw away any risky lettuce now. Stay away from raw salads with iceberg lettuce for now. Restaurants must take out it from menus without delay.