Eaten any sushi lately?

Wood print depicting a man passing a strobila of a broad tapeworm. The caption (not shown) said, "The man ate masu salmon. After a time, a strange object emerged from the anus and was pulled out: it turned out to be 2–3 m long." From Shinsen Yamaino Soushi, by Daizennosuke Koan (1850). Illustration at the CDC Emerging Infectious Diseases, "Diphyllobothriasis Associated with Eating Raw Pacific Salmon." Link And they do mean emerging.

". . . in the past several decades, regions with endemic diphyllobothriasis nihonkaiense have disappeared from Japan, yet the infection has been perpetuated among urban people who eat sushi and sashimi."

Sort of makes those farm raised salmon look a little better, don't ya think?