“Urinary Tract of Dogs Acts as Long-Term Reservoir for Recurrent E. coli Infections”

https://pubmed.ncbi.nlm.nih.gov/38113575

This study found that in dogs with recurrent urinary tract infections caused by E. coli, the same strain of E. coli was often responsible for subsequent infections, suggesting that the urinary tract can serve as a long-term reservoir for the bacteria.