Publications by authors named "Zita Gutierrez-Cazarez"

Introduction: The emergence of extended-spectrum β-lactamases (ESBLs)-producing Escherichia coli clones are a public health concern worldwide. Scarce information does exist about the spread of ESBLs-producing E. coli in pediatric patients from developing countries.

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Article Synopsis
  • This study aimed to identify strains of Acinetobacter spp. in pediatric patients and investigate their genetic relationships, antibiotic resistance, and the role of efflux pumps in this resistance.
  • A total of 54 Acinetobacter isolates were analyzed, revealing various strains, with some exhibiting significant antibiotic resistance, including multidrug-resistant variants among the Acinetobacter calcoaceticus-baumannii complex.
  • The findings highlight the presence of new β-lactamase variants in A. haemolyticus and demonstrate how efflux pumps contribute to antibiotic resistance in these bacteria for the first time.
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The genus Klebsiella belongs to the family Enterobacteriaceae, and is currently considered to be non-motile and non-flagellated. In the present work, 25 Klebsiella strains isolated from nosocomial infections were assessed for motility under different growth conditions. One Klebsiella isolate, KpBUAP021, demonstrated a swim-like motility phenotype.

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