Earthy tasting frozen salmon
Not likely. Wild salmon is pretty low on the list of foods that can cause harm because of cross-contamination, particularly salmon that has been frozen for an extended period of time. Undercooked fish is considered risky more because of potential parasites than bacteria. Months in the freezer is going to pretty much eliminate any risk of consuming a live parasite. Plus, the toxins that can be found in fish are not particularly common in salmon. If the fish didn't spend too long in the "danger zone" either before or after freezing, you've got very little to worry about.