Quantification and rep-PCR characterization of Salmonella spp. in retail meats and hospital patients in Northern Thailand.
Zoonoses Public Health
; 66(3): 301-309, 2019 05.
Article
em En
| MEDLINE
| ID: mdl-30724031
ABSTRACT
Human salmonellosis is a major public health problem worldwide. Infections can pass to humans by contact with contaminated substances in the food chain. This study aimed to determine the prevalence and contamination levels of Salmonella isolated from pork, chicken and beef sold in different types of retail stores in Chiang Mai and Lamphun provinces and to investigate the genetic relatedness among Salmonella isolates in food chains in that area. A total of 360 meat samples from supermarkets, mini-grocery stores and fresh markets were obtained. Salmonella Rissen and S. Weltevreden were found in all meat sample types and in human cases. The overall prevalence of Salmonella in the chicken, pork and beef samples was 34.17%, 32.50% and 3.33%, respectively. Quantitatively, Salmonella contamination was highest in pork (1.24 log10 MPN/g), followed by chicken (1.08 log10 MPN/g), and beef (0.75 log10 MPN/g). The highest frequency of Salmonella contamination was found at the fresh markets (85.71%), whereas the highest quantity of contamination level was from mini-grocery stores (1.27 log10 MPN/g). The rep-PCR analysis results revealed that some of the Salmonella from meat samples and human cases were identical clones.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Salmonella
/
Infecções por Salmonella
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Microbiologia de Alimentos
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Pacientes Internados
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Carne
Tipo de estudo:
Risk_factors_studies
Limite:
Animals
/
Humans
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2019
Tipo de documento:
Article