2020
DOI: 10.1007/s42770-020-00314-0
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Genetic diversity, antimicrobial resistance, and virulence genes of thermophilic Campylobacter isolated from broiler production chain

Abstract: The aim of this study was to investigate the prevalence of thermophilic Campylobacter in the broiler production chain of southern Brazil, by evaluating broiler farms and slaughter line samples, and to determine the genetic diversity, antimicrobial resistance, and virulence genes of the isolates. Of the 140 samples investigated in this study, 75 (53.6%) were positive for thermophilic Campylobacter, and all isolates were identified by phenotypic and molecular tests as C. jejuni. The resistance to nalidixic acid … Show more

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Cited by 20 publications
(22 citation statements)
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“…The detection rates were similar to a previous report in Korea ( Oh et al, 2017 ) but higher than those reported in South Africa and Chile ( González-Hein et al, 2013 ; Otigbu et al, 2018 ; Pillay et al, 2020 ). cad F seems to be a prerequisite for the invasion of epithelial cells by any bacterial pathogen ( Ramires et al, 2020 ). The outer membrane phospholipase A ( pld A) was observed more in C. jejuni than in C. coli ( Figure 2 ), which corroborates the study in South Africa ( Pillay et al, 2020 ), while for cia B, our findings are above those of a previous report in Korea ( Oh et al, 2017 ) and contrast with the study in South Africa ( Pillay et al, 2020 ).…”
Section: Discussionmentioning
confidence: 99%
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“…The detection rates were similar to a previous report in Korea ( Oh et al, 2017 ) but higher than those reported in South Africa and Chile ( González-Hein et al, 2013 ; Otigbu et al, 2018 ; Pillay et al, 2020 ). cad F seems to be a prerequisite for the invasion of epithelial cells by any bacterial pathogen ( Ramires et al, 2020 ). The outer membrane phospholipase A ( pld A) was observed more in C. jejuni than in C. coli ( Figure 2 ), which corroborates the study in South Africa ( Pillay et al, 2020 ), while for cia B, our findings are above those of a previous report in Korea ( Oh et al, 2017 ) and contrast with the study in South Africa ( Pillay et al, 2020 ).…”
Section: Discussionmentioning
confidence: 99%
“…The outer membrane phospholipase A ( pld A) was observed more in C. jejuni than in C. coli ( Figure 2 ), which corroborates the study in South Africa ( Pillay et al, 2020 ), while for cia B, our findings are above those of a previous report in Korea ( Oh et al, 2017 ) and contrast with the study in South Africa ( Pillay et al, 2020 ). The presence of cad F and cia B facilitates the adhesion and internalization of Campylobacter in cellular models ( Ramires et al, 2020 ). The detection rate for csr A in C. jejuni was slightly higher than the rate in C. coli , but csr A was lacking in Campylobacter strains from South Africa ( Otigbu et al, 2018 ).…”
Section: Discussionmentioning
confidence: 99%
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“…Several studies have confirmed the roles of some of the virulence genes by observing the limited capacities of mutants to attach to, colonize, and invade eukaryotic cells [15,16]. Mutant strains lacking flaA and flaB were unable to complete the colonization process in chickens [13,17]. Also, cadF and ciaB mutant strains showed a reduced ability to adhere to and invade cell lines [17].…”
Section: Introductionmentioning
confidence: 95%