Commercially laid eggs vs. discarded hatching eggs: contamination by Salmonella spp

Brazilian Journal of Microbiology

Luciana B.m. Kottwitz²  Joice Aparecida Leão¹  Alberto Back¹  Dalia Dos P. Rodrigues¹  Marciane Magnani²  Tereza C.r.m. De Oliveira² 

[1] ,Universidade Estadual de Londrina Centro de Ciências Agrárias Departamento de Ciência e Tecnologia de Alimentos PR ,Brazil

关键词: discarded eggs;    Salmonella Enteritidis;    antimicrobial resistance;    salmonellosis;   

DOI  :  10.1590/S1517-83822013005000036

来源: SciELO

【 摘 要 】

Salmonella enterica is frequently associated with outbreaks of human salmonellosis, and products of avian origin, such as eggs and chicken meat, are the main vehicles of its transmission. The present study describes the occurrence of different serovars of Salmonella enterica and phagotypes of S. enterica serovar Enteritidis in eggs destined for human consumption. Four thousand eggs obtained from commercial egg laying farms and one thousand discarded hatching eggs from broiler farms, which were acquired at farmers' markets and informal shops, were analyzed. Salmonella spp. was isolated from 52.0% of the discarded hatching eggs, in which the predominant serovar was Enteritidis (84.6%), and the predominant Salmonella Enteritidis phagotype (PT) was PT7 (26.9%). Salmonella spp. was not isolated from eggs obtained from commercial egg laying farms. The antimicrobial resistance profile showed that 23.1% (n = 6) of the SE strains were resistant to nalidixic acid. The results suggest that the consumption of discarded hatching eggs represents an important source of Salmonella transmission to humans.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License