American health officials report more cyclospora infections. People ate contaminated iceberg lettuce. The parasite remains on the greens regardless of washing. Symptoms comprise watery diarrhoea, stomach cramps and exhaustion. Some cases continue weeks. New cases are appearing in multiple states. The CDC and FDA say toss any questionable lettuce now. Skip raw salads with iceberg lettuce for now. Restaurants must take out it from menus at once.