Between 1978 and 2015, the number of parasitic Anisakis worms found in fish increased 283 times – which means sushi could be more likely to be infected, as are marine mammals such as dolphins and whales
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https://www.newscientist.com/article/2237951-fish-used-for-sushi-now-carry-283-times-more-parasites-than-in-1980s/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home