UW News
Marguerite Pappaioanou
March 19, 2020
‘Sushi parasites’ have increased 283-fold in past 40 years
![anisakis in salmon filet](https://uw-s3-cdn.s3.us-west-2.amazonaws.com/wp-content/uploads/sites/6/2020/03/19081748/Anisakis-worm-in-salmon-150x150.jpg)
A new study led by the University of Washington finds dramatic increases in the abundance of a worm that can be transmitted to humans who eat raw or undercooked seafood. Its 283-fold increase in abundance since the 1970s could have implications for the health of humans and marine mammals, which both can inadvertently eat the worm.