Detection of beta-lactamase-producing Enterobacteriaceae in a veterinary hospital environment




TEM, CTX-M, Antimicrobial resistance, Nosocomial infection


Due to the strong selective pressure resulting from the misuse of antibiotics, the natural process of bacterial resistance has been accelerated, leading to the increasingly constant appearance of multiresistant isolates. The high number of multiresistant bacteria is a one health problem. Enterobacteriaceae are usually commensal bacteria of the gastrointestinal tract. However, they can cause infections, and the most important resistance characteristic among them is the production of β-lactamases. This study aimed to identify ESBL-producing Enterobacteriaceae of types of TEM, SHV, and the CTX-M groups. To isolate the enterobacteria, swabs were collected by swiping objects that had contact with the patients and professionals, and the water of the hospital environment. Ten collections were carried out, yielding 306 samples, from which 118 enterobacteria were identified: Escherichia coli, Enterobacter spp., Klebsiella spp., Proteus mirabilis, Serratia spp., and Citrobacter spp. Isolates. The genes TEM and CTX-M, for the production of β lactamases, were detected in 12.7% of the 118 enterobacterial isolates. It is very important to know the bacterial population circulating in the veterinary hospital environment and its resistance to  antimicrobials so that professionals can take appropriate measures to minimize the risks of transmission, especially from cages and consultation tables. In addition, the correct control of the microbiological quality of the supply water, as well as environmental cleaning procedures, are essential to prevent the transmission of these microorganisms.


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Author Biography

  • Jefferson Fernando Naves Pinto, Universidade Federal de Jataí, Laboratório de Recursos Genéticos e Melhoramento Vegetal

    Laboratório de recursos genéticos e melhoramento vegetal, Universidade Federal de Jataí UFJ.


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How to Cite

Oliveira AF de, Arrais BR, Bannwart PF, Pinto JFN, Stella AE. Detection of beta-lactamase-producing Enterobacteriaceae in a veterinary hospital environment. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2022 Jun. 23 [cited 2024 Jul. 17];59:e191724. Available from: