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In 149 isolates (39<jats:italic>Campylobacter jejuni<\/jats:italic>and 24<jats:italic>Campylobacter coli<\/jats:italic>from diarrheic cases; 57<jats:italic>C. jejuni<\/jats:italic>and 29<jats:italic>C. coli<\/jats:italic>from controls), the presence of the<jats:italic>cdtABC<\/jats:italic>and<jats:italic>cadF<\/jats:italic>genes and<jats:italic>iam<\/jats:italic>marker was established. Nalidixic acid, ciprofloxacin, erythromycin, and azithromycin susceptibilities were established in 115 isolates and tetracycline-susceptibility was established in 100 isolates. The presence of mutations in the<jats:italic>gyrA<\/jats:italic>,<jats:italic>parC,<\/jats:italic>and<jats:italic>23S rRNA<\/jats:italic>genes was determined. The<jats:italic>cadF<\/jats:italic>gene and all genes from the<jats:italic>cdtABC<\/jats:italic>operon were significantly more frequent among<jats:italic>C. jejuni<\/jats:italic>(<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.0001<\/mml:mn><\/mml:math>); the<jats:italic>iam<\/jats:italic>marker was more frequent in<jats:italic>C. coli<\/jats:italic>(<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mi>P<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.0001<\/mml:mn><\/mml:math>). No differences were observed in VFs between cases and controls. Almost all isolates were tetracycline-resistant; nalidixic acid and ciprofloxacin resistance reached levels of 90.4% and 88.7%, respectively. Resistance to macrolides was 13% (<jats:italic>C. jejuni<\/jats:italic>4.3%;<jats:italic>C. coli<\/jats:italic>26.1%). Resistance to ciprofloxacin was related to GyrA Thr86 substitutions, while 13 of 15 macrolide-resistant isolates possessed a<jats:italic>23S rRNA<\/jats:italic>mutation (A2075G). Differences in the presence of VFs and alarming levels of resistance to tested antimicrobial agents were observed among<jats:italic>C. jejuni<\/jats:italic>and<jats:italic>C. coli<\/jats:italic>.<\/jats:p>","DOI":"10.1155\/2017\/7848926","type":"journal-article","created":{"date-parts":[[2017,10,9]],"date-time":"2017-10-09T21:01:02Z","timestamp":1507582862000},"page":"1-8","source":"Crossref","is-referenced-by-count":13,"title":["Virulence and Antimicrobial Resistance in<i>Campylobacter<\/i>spp. from a Peruvian Pediatric Cohort"],"prefix":"10.1155","volume":"2017","author":[{"given":"Angela","family":"Lluque","sequence":"first","affiliation":[{"name":"Instituto de Medicina Tropical, Universidad Peruana Cayetano Heredia, Lima, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5347-3261","authenticated-orcid":true,"given":"Maribel","family":"Riveros","sequence":"additional","affiliation":[{"name":"Instituto de Medicina Tropical, Universidad Peruana Cayetano Heredia, Lima, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ana","family":"Prada","sequence":"additional","affiliation":[{"name":"Instituto de Medicina Tropical, Universidad Peruana Cayetano Heredia, Lima, Peru"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Theresa J.","family":"Ochoa","sequence":"additional","affiliation":[{"name":"Instituto de Medicina Tropical, Universidad Peruana Cayetano Heredia, Lima, Peru"},{"name":"Department of Epidemiology, School of Public Health, University of Texas Health Science Center at Houston, Houston, TX, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4431-2036","authenticated-orcid":true,"given":"Joaquim","family":"Ruiz","sequence":"additional","affiliation":[{"name":"ISGlobal, Barcelona Ctr. 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