A UC San Diego study published Tuesday found that more than 90% of freshwater game fish in Southern California had parasites capable of infecting humans and causing health problems.

The parasites were introduced via the invasive Malaysian trumpet snail, which is now present in 17 U.S. states and Puerto Rico. Proper cooking or freezing of fish kills the parasites, but a review of ...

A UC San Diego study published Tuesday found that more than 90% of freshwater game fish in Southern California had parasites capable of infecting humans and causing health problems. The parasites ...