> The Health, Labor and Welfare Ministry has issued an official warning on the rapidly growing number of Anisakis infections linked to eating raw or undercooked fish. [...] The ministry urges consumers to keep the fish frozen below minus 20 degrees for at least a day, or heat it for at least for a minute in temperatures exceeding 60 degrees, which should kill the larvae.

https://www.japantimes.co.jp/news/2017/05/12/national/scienc...