An epidemiological analysis of Salmonella enteritidis contamination in a rat-infested chicken layer farm, an egg processing facility, and liquid egg samples by pulsed-field gel electrophoresis
Issue Date
6-2007
Abstract
In order to determine the epidemiological link between the Salmonella Enteritidis contamination in a rat-infested chicken layer farm, an attached egg processing facility and liquid egg samples, several S. Enteritidis isolates were analyzed by pulsed-field gel electrophoresis (PFGE) and bacteriophage typing. A total of 33 S. Enteritidis strains were isolated from a total of 4,081 samples. Similar pulsed-field patterns were generated by S. Enteritidis isolates from liquid eggs, rats and effluent water. Additionally, only two phage types were detected among the S. Enteritidis isolates, PT 1b and PT 6. These results suggest that S. Enteritidis isolates from rats, egg processing facility, and liquid eggs are genetically related. Furthermore, S. Enteritidis infection in rats in layer farms poses a serious public health concern and should be included in future epidemiological studies.
Source or Periodical Title
Journal of Veterinary Medical Science
ISSN
9167250
Volume
69
Issue
6
Page
649-652
Document Type
Article
Language
English
Subject
Layer farm, Rat, Salmonella Enteritidis
Recommended Citation
Lapuz R, Tani H, Sasai K, Shirota K, Katoh H, Baba E (2007). An epidemiological analysis of Salmonella enteritidis contamination in a rat-infested chicken layer farm, an egg processing facility, and liquid egg samples by pulsed-field gel electrophoresis. J Vet Med Sci. ;69(6):649-52.
Identifier
https://doi.org/10.1292/jvms.69.649
Digital Copy
YES