Antimicrobial Resistance in Wildlife across Switzerland and the Principality of Liechtenstein: Associations with Environmental Factors and Taxonomic Variation

A study in Switzerland and the Principality of Liechtenstein found that 81.5% of Escherichia coli (E. coli) isolates were resistant to 16 antimicrobial drugs, with 10.8% of isolates showing multidrug resistance. The study also found that omnivores exhibited the highest levels of AMR, and that the percentage of forested areas surrounding sampling locations was inversely related to AMR rates. The findings highlight the role of wildlife as potential indicators of environmental contamination with antibiotics and reservoirs of resistant bacteria.