Parasites in California freshwater fish can cause gastrointestinal problems, weight loss and lethargy.

Researchers want the parasite to be added to the diseases that public health officials are required to report. Researchers issue warning after discovering game fish infected with parasite in ...

In severe cases, infection from the game fish has been known to lead to heart attacks and strokes in humans.

These parasites, known to cause digestive problems and, in rare cases, more serious health issues in people, have raised concerns about a once-overlooked threat: fishborne trematodiasis.

Two species of fish-borne parasites have been found in freshwater fish routinely caught for consumption. Researchers say people could be eating the fish in ways that are conducive to transmission.

The parasites are present in lots of fish, including cod and halibut, but they’re easier to see in salmon because the white worms contrast with the flesh.

An experiment with threadfin butterflyfish finds that these fish may experience pleasure while being cleaned by bluestreak ...

You may have heard an influencer say you’re infected with worms or parasites and then been promised a “cleanse cure.” Our ...