Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms

Bulk tank milk from 1,429 herds were collected in 3 rounds from 19 different geographic areas. The milk samples were tested by use of indirect LPS-ELISA procedure to detect Salmonella dublin antibodies. From the obtained OD-values herd seroprevalence in the given area was determined and GR-scores ca...

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Autores principales: Wedderkopp, A, Strøger, U, Lind, P
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2001
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2202318/
https://www.ncbi.nlm.nih.gov/pubmed/11503375
http://dx.doi.org/10.1186/1751-0147-42-295
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author Wedderkopp, A
Strøger, U
Lind, P
author_facet Wedderkopp, A
Strøger, U
Lind, P
author_sort Wedderkopp, A
collection PubMed
description Bulk tank milk from 1,429 herds were collected in 3 rounds from 19 different geographic areas. The milk samples were tested by use of indirect LPS-ELISA procedure to detect Salmonella dublin antibodies. From the obtained OD-values herd seroprevalence in the given area was determined and GR-scores calculated for each herd by addition of the number of positive sampling rounds by the 5 geographically closest neighbour herds. In the 19 different areas the calculated prevalence ranged from 0.01 to 0.41. Totally 3,697 GR-scores were given. The mean GR-scores in the areas ranged from 0.0 to 6.5. Higher GR-scores were found in herds changing to seropositive status compared with herds seronegative throughout the study period. The results indicate that the risk for a dairy herd to receive S. dublin infection increases with the disease status among the nearest neighbours and with the prevalence of seropositive herds in the geographic area.
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spelling pubmed-22023182008-01-17 Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms Wedderkopp, A Strøger, U Lind, P Acta Vet Scand Original Article Bulk tank milk from 1,429 herds were collected in 3 rounds from 19 different geographic areas. The milk samples were tested by use of indirect LPS-ELISA procedure to detect Salmonella dublin antibodies. From the obtained OD-values herd seroprevalence in the given area was determined and GR-scores calculated for each herd by addition of the number of positive sampling rounds by the 5 geographically closest neighbour herds. In the 19 different areas the calculated prevalence ranged from 0.01 to 0.41. Totally 3,697 GR-scores were given. The mean GR-scores in the areas ranged from 0.0 to 6.5. Higher GR-scores were found in herds changing to seropositive status compared with herds seronegative throughout the study period. The results indicate that the risk for a dairy herd to receive S. dublin infection increases with the disease status among the nearest neighbours and with the prevalence of seropositive herds in the geographic area. BioMed Central 2001 2001-06-30 /pmc/articles/PMC2202318/ /pubmed/11503375 http://dx.doi.org/10.1186/1751-0147-42-295 Text en
spellingShingle Original Article
Wedderkopp, A
Strøger, U
Lind, P
Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms
title Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms
title_full Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms
title_fullStr Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms
title_full_unstemmed Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms
title_short Salmonella dublin in Danish Dairy Herds: Frequency of Change to Positive Serological Status in Bulk Tank Milk ELISA in Relation to Serostatus of Neighbouring Farms
title_sort salmonella dublin in danish dairy herds: frequency of change to positive serological status in bulk tank milk elisa in relation to serostatus of neighbouring farms
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2202318/
https://www.ncbi.nlm.nih.gov/pubmed/11503375
http://dx.doi.org/10.1186/1751-0147-42-295
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