Seafood mislabelling is caused by eating certain reef fishes whose flesh is contaminated with toxins. The CDC states the following about Ciguatera: Ciguatera fish poisoning (or ciguatera) is an illness caused by eating fish that contain toxins produced by a marine microalgae called "Gambierdiscus toxicus". People who have ciguatera may experience nausea, vomiting, and neurologic symptoms such as tingling fingers or toes. They also may find that cold things feel hot and hot things feel cold. Ciguatera has no cure. Symptoms usually go away in days or weeks but can last for years. Because the toxins are very heat-resistant, consumers cannot protect
Onsan illness it did admit to high pollution in the area. As a result, from 1991 between 30,000 and 40,000 residents were re-housed away from the affected area as part of a "Collective Emigration Plan". It is thought that over time some of those may have returned. Onsan illness Onsan Illness () is the name for a pollution disease in Korea that occurred in Onsan-eup, Ulju-gun, Ulsan, Korea. It caused a variety of symptoms in the general public and gave rise to an environmental movement in the mid-1980s. In the 1970s South Korea’s dictator Park Chung Hee pushed for a heavy-chemical industry