Sushi possibly causes liver cancer
I thought this was interesting:
Once praised in Europe as a mode of reducing the risks of lung cancer and strokes, a recent report in the BBC warns that raw fish could cause liver cancer. This cancer alert is based on the work of scientists now meeting in a UN sponsored workshop on food-born trematodes (in other words worms). These scientists claim that liver cancer and other illnesses will increase in Asia unless more is done to prevent people becoming infected by worms from eating raw fish. According to the World Health Organization there are approximately 40 million people infected by worms, which have been passed on mainly from snails to fish and eventually into humans through consumption. Clare Arthurs, who covered the story for the BBC, reported that repeated infestation can lead to lung disease and liver cancer (26 November 2002).More here.