Worms are on the rise. Anisakis worms in all saltwater fish and some cephalopods like squid increased 283-fold from 1978 to 2015, according to a 2020 study analyzing hundreds of papers.

Freshwater U.S. Fish Carry Parasitic Flatworm That Can Infect Humans By Dennis Thompson HealthDay ReporterFRIDAY, June 6, 2025 (HealthDay News) — Freshwater game fish like bluegill, largemouth ...

In a nutshell Researchers found human-infecting parasitic worms in 93% of freshwater fish sampled from popular fishing spots in southern California, including bluegill and largemouth bass. A ...

More than 90% of popular freshwater game fish in Southern California contained an introduced parasite capable of infecting humans, according to a new study from researchers at UC San Diego’s ...

In June 2020, media outlets in Vietnam reported on the strange case of a 23-year-old man who had visited a hospital with abscesses along his limbs and neck. Doctors eventually discovered and ...

Sea lamprey can kill freshwater fish. Great Lakes Fish Commison Have you ever seen black spots on the skin of a trout? Or small worms burrowed in the fillets of your crappie? How about a bass that has ...

In the 1970s, the parasites were found in fewer than 1 in 100 fish. Now the average is more than one parasite per individual fish, so though some fish may have none, others may have many.

“You can see what the parasites in a fish from 1888 were like.” Another parasitic worm, Clavinema mariae, which doesn't cause illness in humans, increased its numbers eight times in local ...

LOS ANGELES - Not to open a can of worms, but actually, there could be worms in your wild-caught fish. Tiny worms can make it all the way from the ocean to a dinner plate. One food blogger found ...

Strands of parasitic worms found in dogs and cats are more likely to infect humans than other worm species, researchers said. The study found that 137 of the 737 worm species analyzed may cause ...