A Mediterranean monk seal (Monachus monachus) pup from the southern Adriatic coast of Italy showed cetacean morbillivirus (CeMV) and disseminated Toxoplasma gondii co-infection, which probably resulted from CeMV-induced immunosuppression. These findings are of concern for the conservation of this critically endangered species.
Keywords: Italy; Mediterranean monk seal; Monachus monachus; Toxoplasma gondii; cetacean morbillivirus; co-infection; microbial pathogenesis; pathology; pinniped; viruses.