Characterization of atypical Listeria innocua isolated from swine slaughterhouses and meat markets

Autor(es)

Moreno, Luisa Zanolli ^{[1, 2]} ; Paixao, Renata ^[1] ; Gobbi, Debora Dirani ^[1] ; Raimundo, Daniele Cristine ^[1] ; Ferreira, Thais Porfida ^[1] ; Hofer, Ernesto ^[3] ; Matte, Maria Helena ^[2] ; Moreno, Andrea Micke ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Fac Med Vet & Zootecnia, Lab Sanidade Suina & Virol, BR-05508270 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Fac Saude Publ, Lab Prat Saude Publ, BR-01246904 Sao Paulo - Brazil

^[3] Fundacao Inst Oswald Cruz, Lab Zoonoses Bacterianas, BR-21040360 Rio De Janeiro, RJ - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Research in Microbiology; v. 163, n. 4, p. 268-271, MAY 2012.
• Citações Web of Science: 18

Resumo

Atypical Listeria innocua strains presenting phenotypic characteristics similar to those of Listeria monocyto genes were recently isolated from food and the environment. These isolates also tested positive for virulence genes specific to L. monocytogenes. Here we report the isolation of atypical hemolytic L. innocua strains from the environment of pork processing plants in Brazil. The strains were positive for L. monocytogenes virulence genes hly, inlA and inlB by PCR and presented genotypic similarities with human isolates of L. monocytogenes via the AFLP technique using HindIII single enzyme protocol. Phenotypic and genotypic similarities suggest that these atypical L. innocua may be pathogenic strains. (C) 2012 Institut Pasteur. Published by Elsevier Masson SAS. All rights reserved. (AU)

• Processo FAPESP: 06/55501-0 - Isolamento e caracterizacao de listeria monocytogenes e yersinia enterocolitica em abatedouros e cortes de carne suina no estado de sao paulo e sua comparacao genotipica com isolados de casos clinicos em..
• Beneficiário: Renata Paixão
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 10/19005-4 - Identificação de genes de virulência e caracterização do perfil de resistência a antimicrobianos em cepas de Listeria spp. originárias de ambiente, alimento e infecção humana
• Beneficiário: Maria Helena Matte
• Modalidade de apoio: Auxílio à Pesquisa - Regular