| Observations on Salmonella contamination of eggs from infected commercial laying flocks where vaccination for Salmonella enterica serovar Enteritidis had been used. | |
| | |
MedLine Citation:
|
PMID: 15276979 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Eggs were collected monthly from 12 cage-layer flocks on four farms where Salmonella Enteritidis was present in vaccinated flocks despite vaccination with an S. Enteritidis bacterin. Where possible, hens were also taken for culture at the end of the laying period, and faecal and environmental samples were taken from the laying houses before and after cleaning and disinfection. Twenty-four batches of six egg shells from the 13 652 tested (0.18% [0.11 to 0.26 CI(95)] single egg equivalent) were positive for S. Enteritidis and 54 (0.40% [0.30 to 0.52 CI(95)] single egg equivalent) for other serovars. Six batches of 13 640 (0.04% [0.02 to 0.10 CI95] single egg equivalent) egg contents, bulked in six egg pools, contained S. Enteritidis and three batches contained other serovars. In addition three further batches contained S. Enteritidis in both contents and shells, and two other batches contained other serovars in both. The total level of contamination by S. Enteritidis of both contents and shells found in vaccinated flocks was therefore 33 batches/13 682 eggs(0.24% [0.17 to 0.34 CI(95)] single egg equivalent). The total of contamination for any Salmonella serovar was 92 batches/13 682 eggs (0.68% [0.55 to 0.84 CI(95)] single egg equivalent). These results contrast with the findings of testing of eggs from three unvaccinated flocks prior to this study where 21 batches of egg shells from a total of 2101 eggs (1.0% [0.63 to 1.56 CI(95)] single egg equivalent) and six batches of contents from 2051 eggs (0.29% [0.11 to 0.64 CI95] single egg equivalent) were contaminated with S. Enteritidis. S. Enteritidis was found in 67/699 (9.6%) of vaccinated spent hens and 64/562 (11.4%) of bulked fresh faecal samples taken from laying houses. Failure to adequately clean and disinfect laying houses and to control mice appeared to be a common feature on the farms. |
| | |
Authors:
|
Robert Davies; Mark Breslin |
Related Documents
:
|
22975879 - Targeting dendritic cells for improved hiv-1 vaccines. 23230039 - Examination of pneumococcal vaccination rates among u.s. adult smokers. 11007009 - The effects of ts-11 strain mycoplasma gallisepticum vaccination in commercial layers o... 23176979 - The potential economic value of a cutaneous leishmaniasis vaccine in seven endemic coun... 23339769 - The incidence of feline injection site sarcomas in the united kingdom. 23024589 - Use of influenza vaccines in children with an egg allergy. 16886389 - Blood leukocyte responses in rats vaccinated with cdna encoding glutathioinie-s-transfe... 21601059 - Rabies research in resource-poor countries. 6279359 - Dog response to inactivated canine parvovirus and feline panleukopenia virus vaccines. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Avian pathology : journal of the W.V.P.A Volume: 33 ISSN: 0307-9457 ISO Abbreviation: Avian Pathol. Publication Date: 2004 Apr |
Date Detail:
|
Created Date: 2004-07-27 Completed Date: 2006-07-07 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 8210638 Medline TA: Avian Pathol Country: England |
Other Details:
|
Languages: eng Pagination: 133-44 Citation Subset: IM |
Affiliation:
|
Department of Food and Environmental Safety, Veterinary Laboratories Agency--Weybridge, Surrey, UK. r.h.davies@vla.defra.gsi.gov.uk |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animal Husbandry Animals Chickens / microbiology* Diptera / microbiology Egg Shell / microbiology Eggs / microbiology* Feces / microbiology Female Food Microbiology* Housing, Animal Mice Retrospective Studies Salmonella / immunology, isolation & purification* Salmonella Infections, Animal / immunology, microbiology, prevention & control Salmonella Vaccines / immunology* Seasons |
| Chemical | |
Reg. No./Substance:
|
0/Salmonella Vaccines |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Quantification of infectious bursal disease viral proteins 2 and 3 in inactivated vaccines as an ind...
Next Document: In vivo studies of Gallibacterium anatis infection in chickens.