"Actually the name "Salmon Poisoning" is a bit of a misnomer. It's not the salmon, per se, but a nematode (Nanophyteus salmincola) found in the salmon (most abundant in the organs, but it also can be found in the meat). No, actually that also is also not precise enough. The disease is from a "neorickettsia" (Neorickettsia helminthoeca, bugs similar to Erhlicia and RMSF) that is in the nematode, that is in the fish. Dogs are the only animals that we know of that are susceptible - not cats, bears, people, etc. If you cook or freeze the nematode carrying the rickettsia then the fish is safe for dogs. As far as I know it can be found in any salmon (mainly freshwater and Pacific) and a few other fish sometimes."