Especies de Campylobacter resistentes a fluoroquinolonas aisladas de ganado porcino y bovino en la provincia de Loja

Abstract

Campylobacter is a foodborne bacterial pathogen that usually causes gastroenteritis in humans. This pathogenic organism is increasingly resistant to antibiotics, especially fluoroquinolones and macrolides which are the most frequently used antimicrobials for the treatment of campylobacteriosis when clinical therapy is warranted. The present study determined the prevalence of fluoroquinolone resistant Campylobacter species isolated from porcine and bovine cattle in the province of Loja. A hundred samples of bovine faeces were collected where the prevalence for Campylobacter spp. was 15%, of which 73% (11/15) were C. jejuni and 23% (4/15) C. coli. As for pigs, 30 samples were collected, obtaining a prevalence of 27%, of which 100% (8/8) were C. coli. No isolation of C. jejuni was recorded. Analysis of the antimicrobial activity in bovine cattle showed a resistance of 87% to nalidixic acid and to ciprofloxacin and in strains isolated from pigs presented a resistance of 100% against nalidixico acid and ciprofloxacina. Therefore, the present study provides valuable information on the presence of Campylobacter thermotolerant species in our region and its epidemiological relationship with isolated strains, which will allow the strengthening of Campylobacter spp. in cattle and pigs, as these animals present zoonotic risk because they are asymptomatic carriers of the pathogen