American health officials report rising cyclospora infections. People consumed contaminated iceberg lettuce. The parasite remains on the greens despite washing. Symptoms comprise watery diarrhoea, stomach cramps and exhaustion. Some cases persist weeks. New cases are popping up in several states. The CDC and FDA say throw away any questionable lettuce now. Skip raw salads with iceberg lettuce for now. Restaurants must take out it from menus immediately.