American health officials note more cyclospora infections. People consumed contaminated iceberg lettuce. The parasite remains on the greens regardless of washing. Symptoms comprise watery diarrhoea, stomach cramps and exhaustion. Some cases last weeks. New cases are popping up 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 without delay.