Peer-reviewed veterinary case report
Multidrug resistant E. coli infections in US dogs and cats
By Shaheen, B W et al.·Published in Journal of veterinary internal medicine·2010·Department of Anatomy, United States·View original on PubMed →
PetCaseFinder translated the abstract of this peer-reviewed paper into plain English so pet owners can read it. We do not publish original research — every detail traces back to the citation above. How we work →
Original publication title: Antimicrobial resistance profiles and clonal relatedness of canine and feline Escherichia coli pathogens expressing multidrug resistance in the United States.
Plain-English summary
A study found that many dogs and cats in the U.S. are getting infections from a type of bacteria called E. coli that is resistant to multiple antibiotics. Out of 376 samples collected, over half showed resistance to at least one antibiotic, with some being resistant to all tested drugs. This means that treating infections in pets can be challenging, as common medications may not work. The findings highlight the need for better monitoring of these resistant bacteria to help keep pets healthy.
People also search for: dog E. coli infection treatment · cat antibiotic resistance symptoms · why is my dog getting infections
Abstract
BACKGROUND: Antimicrobial resistance is increasing among Escherichia coli isolates associated with spontaneous infection in dogs and cats. OBJECTIVES: To describe E. coli resistance phenotypes and clonal relatedness and their regional prevalence. ANIMALS: Isolates of E. coli (n = 376) collected from dogs and cats in the United States between May and September 2005. METHODS: Isolates submitted from the South, West, Northeast, and Midwest regions of the United States were prospectively studied. Phenotype was based on E-test susceptibility to 7 antimicrobials. Isolates were classified as no (NDR), single (SDR), or multidrug resistance (MDR). Clonal relatedness was determined by pulsed-field gel electrophoresis (PFGE). RESULTS: One hundred and ninety-three (51%) isolates expressed resistance to at least 1 drug, yielding 42 phenotypes. SDR isolates (n = 84; 44%, 8 phenotypes), expressed resistance most commonly to amoxicillin (30%, n = 25) and least commonly to cefpodoxime (1%, n = 1). MDR isolates (n = 109; 56%, 31 phenotypes) were resistant to amoxicillin (96%, n = 105), amoxicillin-clavulanate (85%, n = 93), and enrofloxacin (64%, n = 70); 18% (n = 20) were resistant to all drugs tested. The frequency of MDR did not differ regionally (P = .066). MDR minimum inhibitory concentrations (MICs) were 6-fold higher than SDR MICs (P < .0001). Dendrograms of 91 isolates representing 25 phenotypes revealed 62 different PFGE profiles. CONCLUSIONS AND CLINICAL IMPORTANCE: E. coli strains spontaneously infecting dogs and cats are genetically and phenotypically diverse. Given the current prevalence of MDR among clinical isolates of E. coli in United States, implementation of a robust surveillance program is warranted.
Find similar cases for your pet
PetCaseFinder finds other peer-reviewed reports of pets with the same symptoms, plus a plain-English summary of what was tried across them.
Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/20102505/