Campylobacter jejuni in commercial eggs

Brazilian Journal of Microbiology

Belchiolina Beatriz Fonseca²  Marcelo Emílio Beletti¹  Roberta Torres De Melo²  Eliane Pereira Mendonça²  Letícia Ríspoli Coelho²  Priscila Christen Nalevaiko²  Daise Aparecida Rossi² 

[1] ,Universidade Federal de Uberlândia Faculdade de Medicina Veterinária Laboratório de Biotecnologia Animal AplicadaUberlândia MG ,Brazil

关键词: campylobacteriosis;    commercial eggs;    penetration;   

DOI  :  10.1590/S1517-83822014000100011

来源: SciELO

【 摘 要 】

This study evaluated the ability of Campylobacter jejuni to penetrate through the pores of the shells of commercial eggs and colonize the interior of these eggs, which may become a risk factor for human infection. Furthermore, this study assessed the survival and viability of the bacteria in commercial eggs. The eggs were placed in contact with wood shavings infected with C. jejuni to check the passage of the bacteria. In parallel, the bacteria were inoculated directly into the air chamber to assess the viability in the egg yolk. To determine whether the albumen and egg fertility interferes with the entry and survival of bacteria, we used varying concentrations of albumen and SPF and commercial eggs. C. jejuni was recovered in SPF eggs (fertile) after three hours in contact with contaminated wood shavings but not in infertile commercial eggs. The colonies isolated in the SPF eggs were identified by multiplex PCR and the similarity between strains verified by RAPD-PCR. The bacteria grew in different concentrations of albumen in commercial and SPF eggs. We did not find C. jejuni in commercial eggs inoculated directly into the air chamber, but the bacteria were viable during all periods tested in the wood shavings. This study shows that consumption of commercial eggs infected with C. jejuni does not represent a potential risk to human health.

【 授权许可】

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