Antimicrobial resistance in companion animals: trends, threats and take aways

This WOAH report highlights that antimicrobial resistance (AMR) in companion animals (especially dogs and cats) is an emerging but under-recognised component of the global AMR challenge. Companion animals live in close contact with humans, creating opportunities for bidirectional transmission of resistant bacteria, including clinically important strains such as MRSP and ESBL-producing E. coli. However, surveillance data remain fragmented, biased, and poorly standardised, with limited inclusion of companion animals in national AMR monitoring systems and major gaps for certain animal populations. The report emphasises that antimicrobial use in veterinary practice—often involving drugs critical for human medicine—combined with insufficient data and coordination, hampers understanding and control of AMR, underscoring the need for stronger surveillance, harmonisation, and a One Health approach.