Escherichia coli con resistencia a múltiples antimicrobianos en granjas de producción porcina de la República Argentina
; Sanz, Marcelo Eduardo ; Cappuccio, Javier Alejandro
; Carriquiriborde, Martin ; Etcheverría, Analía Inés
; Perfumo, Carlos Juan ; Padola, Nora Lía ; Leotta, Gerardo Anibal 
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Fecha
12/2013
Editorial
Universidad Nacional de la Plata. Facultad de Ciencias Veterinarias
Revista
Analecta Veterinaria
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Institución organizadora
ISSN
eISSN
1514-2590
ISBN
Idioma
Español
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Resumen
Los objetivos del presente trabajo fueron: i) monitorear la resistencia de E. coli frente a diversos antimicrobianos frecuentemente utilizados con fines terapéuticos y profilácticos en explotaciones porcinas; ii) aislar y caracterizar fenotípica y genotípicamente E. coli toxigénicos provenientes de cerdos con diarrea pre y posdestete; iii) determinar la presencia de integrones clase 1 y 2 como posible mecanismo de diseminación de resistencia. Se procesaron 216 hisopados rectales de cerdos clínicamente sanos y con diarrea, de 15 granjas de producción porcina. El 46,6 % de los aislamientos presentó resistencia a múltiples antimicrobianos. El 93 % fueron resistentes a tetraciclina, el 59 % a ciprofloxacina, el 52 % a florfenicol, 8 % a amoxicilina/ác. clavulánico y 0,6 % a gentamicina. No se observó resistencia a colistina. De 56 E. coli, 34 portaron al menos uno de los genes int1 o int2. Se aisló E. coli toxigénico a partir del 53 % de los cerdos con diarrea. El uso inadecuado de antimicrobianos con fines profilácticos o terapéuticos en medicina veterinaria, implica un riesgo para la salud pública.
The objectives of this study were: i) to control the resistance of E. coli against various commonly used antimicrobials for therapeutic and prophylactic in pig farms ii) to isolate and characterize phenotypic and genotypic E. coli toxigenic diarrhea from pigs pre and post weaning, iii) to determinate the presence of class 1 and 2 integrons as possible resistance mechanism of spread of E. coli from porcine. Rectal swabs were processed from 216 clinically healthy and diarrheic pigs, from 15 pig farms. 46.6% of the isolates were resistant to multiple antimicrobials, 93% were resistant to tetracycline, 59% to ciprofloxacin, 52% to florfenicol, 8% to amoxicillin/clavulanic acid and 0.6% to gentamicin. No resistance to colistina was observed. Out of 56 E. coli, 34 carried at least one gene int2 or int1. Toxigenic E. coli was isolated from 53% of pigs with diarrhea. The inappropriate use of antimicrobial to prophylactic or therapeutic purposes in veterinary medicine, involves a risk to public health.
The objectives of this study were: i) to control the resistance of E. coli against various commonly used antimicrobials for therapeutic and prophylactic in pig farms ii) to isolate and characterize phenotypic and genotypic E. coli toxigenic diarrhea from pigs pre and post weaning, iii) to determinate the presence of class 1 and 2 integrons as possible resistance mechanism of spread of E. coli from porcine. Rectal swabs were processed from 216 clinically healthy and diarrheic pigs, from 15 pig farms. 46.6% of the isolates were resistant to multiple antimicrobials, 93% were resistant to tetracycline, 59% to ciprofloxacin, 52% to florfenicol, 8% to amoxicillin/clavulanic acid and 0.6% to gentamicin. No resistance to colistina was observed. Out of 56 E. coli, 34 carried at least one gene int2 or int1. Toxigenic E. coli was isolated from 53% of pigs with diarrhea. The inappropriate use of antimicrobial to prophylactic or therapeutic purposes in veterinary medicine, involves a risk to public health.
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