They elaborate with: «Possible adverse events include failure to immunize, anaphylaxis, immunosuppression, autoimmune disorders, transient infections, and / or long - term infected carrier states.» (dogsnaturallymagazine.com)
Had Cyd never been linebred, and this PRA carrier state not been detected, would that have been a good thing? (italiangreyhound.org)
Similarly both viruses can result in chronic carrier states where the cat may be free of clinical signs — in other words, appear outwardly healthy, but is shedding infective virus1. (pethealthnetwork.com)