The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan
The prevalence of Salmonella in four layer farms in eastern Japan was investigated between 2004 and 2006 to determine the role of roof rats (Rattus rattus) in the epizootology of Salmonella enterica subsp. enterica serovar Enteritidis (S. Enteritidis). Persistent S. Enteritidis and S. Infantis conta...
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ftunivphilosban:oai:www.ukdr.uplb.edu.ph:journal-articles-3726 2023-05-15T18:05:01+02:00 The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan Lapuz, R. Tani, H. Sasai, K. Shirota, K. Katoh, H. Baba, E. 2008-09-01T07:00:00Z https://www.ukdr.uplb.edu.ph/journal-articles/2683 https://pubmed.ncbi.nlm.nih.gov/17988423/ English eng University Knowledge Digital Repository https://www.ukdr.uplb.edu.ph/journal-articles/2683 https://pubmed.ncbi.nlm.nih.gov/17988423/ Journal Article text 2008 ftunivphilosban 2023-03-05T06:53:52Z The prevalence of Salmonella in four layer farms in eastern Japan was investigated between 2004 and 2006 to determine the role of roof rats (Rattus rattus) in the epizootology of Salmonella enterica subsp. enterica serovar Enteritidis (S. Enteritidis). Persistent S. Enteritidis and S. Infantis contamination of the environment and pooled egg samples were detected in three out of four layer farms. A total of 113 (13.3%) and 158 (18.6%) out of 851 rats examined were positive for S. Enteritidis and S. Infantis, respectively. By pulsed-field gel electrophoresis, only one indistinguishable pulsed-field pattern was yielded by S. Enteritidis strains from rats, eggs and environmental samples from each of the two contaminated layer farms. Although, a variety of pulsed-field patterns were generated by S. Enteritidis isolates from rats, eggs, and the environment of the other contaminated farms, there are, however, some S. Enteritidis strains that are closely related clones. These results suggest that roof rats are carriers of S. Enteritidis and S. Infantis and that persistent S. Enteritidis and S. Infantis infections in a rat population may play an important role in the spread and maintenance of these pathogens inside the layer premises. © 2007 Cambridge University Press. Text Rattus rattus University Knowledge Digital Repository UPLB (University of the Philippines Los Baños) |
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University Knowledge Digital Repository UPLB (University of the Philippines Los Baños) |
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ftunivphilosban |
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English |
description |
The prevalence of Salmonella in four layer farms in eastern Japan was investigated between 2004 and 2006 to determine the role of roof rats (Rattus rattus) in the epizootology of Salmonella enterica subsp. enterica serovar Enteritidis (S. Enteritidis). Persistent S. Enteritidis and S. Infantis contamination of the environment and pooled egg samples were detected in three out of four layer farms. A total of 113 (13.3%) and 158 (18.6%) out of 851 rats examined were positive for S. Enteritidis and S. Infantis, respectively. By pulsed-field gel electrophoresis, only one indistinguishable pulsed-field pattern was yielded by S. Enteritidis strains from rats, eggs and environmental samples from each of the two contaminated layer farms. Although, a variety of pulsed-field patterns were generated by S. Enteritidis isolates from rats, eggs, and the environment of the other contaminated farms, there are, however, some S. Enteritidis strains that are closely related clones. These results suggest that roof rats are carriers of S. Enteritidis and S. Infantis and that persistent S. Enteritidis and S. Infantis infections in a rat population may play an important role in the spread and maintenance of these pathogens inside the layer premises. © 2007 Cambridge University Press. |
format |
Text |
author |
Lapuz, R. Tani, H. Sasai, K. Shirota, K. Katoh, H. Baba, E. |
spellingShingle |
Lapuz, R. Tani, H. Sasai, K. Shirota, K. Katoh, H. Baba, E. The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan |
author_facet |
Lapuz, R. Tani, H. Sasai, K. Shirota, K. Katoh, H. Baba, E. |
author_sort |
Lapuz, R. |
title |
The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan |
title_short |
The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan |
title_full |
The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan |
title_fullStr |
The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan |
title_full_unstemmed |
The role of roof rats (Rattus rattus) in the spread of Salmonella Enteritidis and S. Infantis contamination in layer farms in eastern Japan |
title_sort |
role of roof rats (rattus rattus) in the spread of salmonella enteritidis and s. infantis contamination in layer farms in eastern japan |
publisher |
University Knowledge Digital Repository |
publishDate |
2008 |
url |
https://www.ukdr.uplb.edu.ph/journal-articles/2683 https://pubmed.ncbi.nlm.nih.gov/17988423/ |
genre |
Rattus rattus |
genre_facet |
Rattus rattus |
op_source |
Journal Article |
op_relation |
https://www.ukdr.uplb.edu.ph/journal-articles/2683 https://pubmed.ncbi.nlm.nih.gov/17988423/ |
_version_ |
1766176435261669376 |