Tracking the Prevalence of Antibiotic Resistance in Enterococcus Within the Spanish Poultry Industry: Insights from a One Health Approach

This study analyzed the prevalence, resistance patterns, and mannitol fermentation capacity of Enterococcus isolates from various poultry production systems in Spain over a seven-year period (2017-2023). Results showed that Enterococcus faecalis and Enterococcus faecium were the predominant species, primarily isolated from broilers. High resistance rates to tetracyclines and streptogramins were identified, while vancomycin and tigecycline resistance was low. Multidrug resistance was detected in 26.98% of isolates.