Twenty Years of Listeria in Brazil: Occurrence of Listeria Species and Listeria monocytogenes Serovars in Food Samples in Brazil between 1990 and 2012

被引:31
作者
Vallim, Deyse Christina [1 ]
Hofer, Cristina Barroso [2 ]
Lisboa, Rodrigo de Castro [1 ]
Barbosa, Andre Victor [1 ]
Rusak, Leonardo Alves [1 ]
Falavina dos Reis, Cristhiane Moura [1 ]
Hofer, Ernesto [1 ]
机构
[1] Fiocruz MS, Inst Oswaldo Cruz, Lab Zoonoses Bacterianas, BR-21040360 Rio De Janeiro, RJ, Brazil
[2] Univ Fed Rio de Janeiro, Fac Med, Programa Posgrad Doencas Infecciosas & Parasitari, BR-21941902 Rio De Janeiro, RJ, Brazil
关键词
SAO-PAULO; RISK-ASSESSMENT; PREVALENCE; ILLNESS; REGION;
D O I
10.1155/2015/540204
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Listeria spp. isolated from different food products and collected from 12 Brazilian states were sent to the Laboratory of Bacterial Zoonoses (Oswaldo Cruz Institute, Brazil) for identification. The aims of this study were to characterize these isolates, from 1990 to 2012, by using biochemical, morphological, and serotyping tests, and to analyze the distribution of L. monocytogenes serotypes on different food products and geographical locations. Serotyping was performed using polyclonal somatic and flagellar antisera. Of 5953 isolates, 5770 were identified as Listeria spp., from which 3429 (59.4%) were L. innocua, 2248 (38.9%) were L. monocytogenes, and 93 (1.6%) were other Listeria spp. L. innocua was predominantly isolated from 1990 to 2000, while L. monocytogenes was from 2001 to 2012. Regarding the serotype distribution in the foods, serotypes 1/2a and 4b were most common in processed meat and ready-to-eat products, respectively; serotypes 1/2a, 1/2b, and 4b were the most common in nonprocessed meat. The results above confirm the presence of the main serotypes of L. monocytogenes in different parts of the food chain from three regions of the country and emphasize the importance of improving the control measures, as tolerance zero policy and microbiological surveillance in Brazil.
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页数:8
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