US health officials announce more cyclospora infections. People consumed unsafe iceberg lettuce. The parasite stays on the greens even after washing. Symptoms comprise watery diarrhoea, stomach cramps as well as exhaustion. Some cases persist weeks. New cases are emerging in multiple states. The CDC and FDA say throw away any suspect lettuce now. Stay away from raw salads with iceberg lettuce for now. Restaurants must take out it from menus at once.