title: [Study of phenotypical and antimicrobial susceptibility markers in enteric Escherichia coli strains].
abstract: Forty strains of Escherichia coli isolated from children under 5 years of age with acute diarreas, coming from different provinces of the country , were analyzed. Four important phenotypical determinants were tested: sorbosa, sorbitol, enterohemolysin and 0157:H7 serology, in order to select those strains from enterohemorrhagic or Shiga toxin-producing category. Likewise, they were characterized by biotyping and antimicrobial susceptibility methods. The use of phenotypical tests showed six strains with presumptive characteristics, four of which were most likely to be Shiga toxin-producing strains. In antimicrobial susceptibility test, the strains showed high resistance mainly to ampicillin and trimethrophin-sulfamethoxasole. Another interesting finding were intermediate resistance and susceptibility values to augmentin, aztreonan and ceftriaxone. There were 12 antimicrobial resistance patterns of which 10 were multi-resistant.
authors: Instituto De Medicina Tropical Pedro Kouri, Ciudad de La Habana, Cuba. adalberto@ipk.sld.cu
authors: Adalberto
authors: A
authors: Aguila
authors: Robert
authors: R
authors: Bernedo
authors: Alina
authors: A
authors: Llop
authors: Margarita
authors: M
authors: Ramírez
authors: Laura
authors: L
authors: Bravo
authors: Anabel
authors: A
authors: Fernández
authors: Yudith
authors: Y
authors: Ledo
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D015373:Bacterial Typing Techniques / Q000379:methods*; D002675:Child, Preschool; D003462:Cuba / Q000453:epidemiology; D003968:Diarrhea, Infantile / Q000453:epidemiology / Q000382:microbiology; D024881:Drug Resistance, Bacterial / Q000235:genetics*; D024901:Drug Resistance, Multiple, Bacterial / Q000235:genetics; D004927:Escherichia coli Infections / Q000453:epidemiology / Q000382:microbiology; D019453:Escherichia coli O157 / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D029968:Escherichia coli Proteins / Q000032:analysis; D006460:Hemolysin Proteins / Q000032:analysis; D006801:Humans; D007223:Infant; D008826:Microbial Sensitivity Tests; D010641:Phenotype; D012703:Serotyping; D054323:Shiga-Toxigenic Escherichia coli / Q000145:classification* / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification / Q000378:metabolism; D013012:Sorbitol / Q000378:metabolism; D013013:Sorbose / Q000378:metabolism
chemical_list: D000900:Anti-Bacterial Agents; D029968:Escherichia coli Proteins; D006460:Hemolysin Proteins; C066219:enterohemolysin; D013012:Sorbitol; D013013:Sorbose