Detection of SARS-CoV-2 antibodies in companion animals in Poland during the post-pandemic period (2022–2025)

This study demonstrates that cats and dogs in Poland have been exposed to SARS-CoV-2, with seropositivity rate levels consistent with international reports. Cats were more frequently seropositive than dogs, and middle-aged animals had the highest likelihood of exposure, reflecting cumulative contact opportunities during peak human transmission. Rabbits did not show evidence of past infection, suggesting negligible involvement in viral ecology under natural conditions. These findings support the role of pets as sentinels of community transmission and highlight the importance of continued One Health surveillance.