When an underestimated zoonosis and antimicrobial resistance collide: Corynebacterium ulcerans.

In the European region, diphtheria is now rarely suspected in patients presenting with upper respiratory tract symptoms. is the underestimated zoonosis that is replacing infections in industrialized countries, but extensive human and animal prevalence studies are lacking. The range of hosts that can act as reservoirs for is very broad, companion pets currently being the main source of human infection. We report a case of macrolide-resistant infection with no apparent zoonotic transmission and outline the efforts required for the public and zooprophylactic management of these cases. We describe the main critical issues to be addressed to comprehensively tackle this zoonosis in the future.