High survival rates of Campylobacter coli under different stress conditions suggest that more rigorous food control measures might be needed in Brazil

Autor(es)

Gomes, Carolina N. ^[1] ; Passaglia, Jaqueline ^[1] ; Vilela, Felipe P. ^[1] ; Pereira da Silva, Fatima M. H. S. ^[1] ; Duque, Sheila S. ^[2] ; Falcao, Juliana P. ^{[1, 3]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Anal Clin Toxicol & Bromatol, Av Cafe S-N, Campus Univ USP, BR-14040903 Ribeirao Preto, SP - Brazil

^[2] Fundacao Oswaldo Cruz FIOCRUZ, IOC, Pavilhao Rocha Lima, Sala 516, Av Brasil 4365, BR-21040900 Rio De Janeiro, RJ - Brazil

^[3] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Av Cafe S-N, Bloco S, Sala 41, Ribeirao Preto, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FOOD MICROBIOLOGY; v. 73, p. 327-333, AUG 2018.
• Citações Web of Science: 3

Resumo

Campylobacter spp. have been the most commonly reported gastrointestinal bacterial pathogen in many countries. Consumption of improperly prepared poultry meat has been the main transmission route of Campylobacter spp. Although Brazil is the largest exporter of poultry meat in the world, campylo-bacteriosis has been a neglected disease in the country. The aim of this study was to characterize 50 Campylobacter coli strains isolated from different sources in Brazil regarding the frequency of 16 virulence genes and their survival capability under five different stress conditions. All strains studied presented the cadF, flaA, and sodB genes that are considered essential for colonization. All strains grew at 4 degrees C and 37 degrees C after 24 h. High survival rates were observed when the strains were incubated in BHI with 7.5% NaCl and exposed to acid and oxidative stress. In conclusion, the pathogenic potential of the strains studied was reinforced by the presence of several important virulence genes and by the high growth and survival rates of the majority of those strains under different stress conditions. The results enabled a better understanding of strains circulating in Brazil and suggest that more rigorous control measures may be needed, given the importance of contaminated food as vehicles for Campylobacter coli. (c) 2018 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 15/23408-0 - Análise fenotípica, sequenciamento do genoma e transcriptoma de linhagens de Campylobacter coli isoladas de diversas fontes durante 16 anos no Brasil
• Beneficiário: Carolina Nogueira Gomes
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 16/24716-3 - Sequenciamento do genoma, transcriptoma e análise fenotípica de linhagens de Campylobacter coli isoladas de diversas fontes no Brasil
• Beneficiário: Juliana Pfrimer Falcão
• Modalidade de apoio: Auxílio à Pesquisa - Regular