Anisakis Worms in Blue Whiting (IMAGE) University of Washington Caption Anisakis worms in blue whiting fish. The prevalence of these worms, found in raw or undercooked fish, has increased dramatically since the 1970s. Credit Gonzalo Jara/Shutterstock Usage Restrictions credit required License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.