https://phys.org/news/2018-07-salmon-poisoning-disease-grizzly.html

"We are hopeful that the bears used in the initial restoration effort will feed exclusively on terrestrial-based foods as there are currently very few salmon returning to the North Cascades; however, any bear that moves into lower elevation areas where they might consume salmon will be closely monitored," said lead author Dr. Charles Robbins, of Washington State University. "If they eat salmon containing the bacteria, we suspect they will get sick. We are hopeful that they will be able to recover."

                                                            
                                    
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                                    Charles T. Robbins et al, Salmon poisoning disease in grizzly bears with population recovery implications, The Journal of Wildlife Management (2018).  DOI: 10.1002/jwmg.21502