Space–time patterns of Campylobacter spp. colonization in broiler flocks, 2002–2006

This study was performed to investigate space–time patterns of Campylobacter spp. colonization in broiler flocks in Norway. Data on the Campylobacter spp. status at the time of slaughter of 16 054 broiler flocks from 580 farms between 2002 and 2006 was included in the study. Spatial relative risk ma...

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Published in:Epidemiology and infection 2010-09, Vol.138 (9), p.1336-1345
Main Authors: JONSSON, M. E., NORSTRÖM, M., SANDBERG, M., ERSBØLL, A. K., HOFSHAGEN, M.
Format: Article
Language:English
Subjects:
Animals
Bacteriology
Biological and medical sciences
Broiler
Campylobacter
Campylobacter - classification
Campylobacter - isolation & purification
Campylobacter Infections - epidemiology
Campylobacter Infections - microbiology
Campylobacter Infections - veterinary
Chickens - microbiology
Density estimation
Epidemiology
Farms
Fundamental and applied biological sciences. Psychology
Geodetic position
Geographic regions
Investigations
K-function
Microbiology
Miscellaneous
Norway - epidemiology
Other infections
Poultry Diseases - epidemiology
Poultry Diseases - microbiology
Predisposing factors
Prevalence
Risk Factors
Space-Time Clustering
Spacetime
spatial epidemiology
Surveillance
Veterinary medicine
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creator JONSSON, M. E.
NORSTRÖM, M.
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HOFSHAGEN, M.
description This study was performed to investigate space–time patterns of Campylobacter spp. colonization in broiler flocks in Norway. Data on the Campylobacter spp. status at the time of slaughter of 16 054 broiler flocks from 580 farms between 2002 and 2006 was included in the study. Spatial relative risk maps together with maps of space–time clustering were generated, the latter by using spatial scan statistics. These maps identified the same areas almost every year where there was a higher risk for a broiler flock to test positive for Campylobacter spp. during the summer months. A modified K-function analysis showed significant clustering at distances between 2·5 and 4 km within different years. The identification of geographical areas with higher risk for Campylobacter spp. colonization in broilers indicates that there are risk factors associated with Campylobacter spp. colonization in broiler flocks varying with region and time, e.g. climate, landscape or geography. These need to be further explored. The results also showed clustering at shorter distances indicating that there are risk factors for Campylobacter spp. acting in a more narrow scale as well.
doi_str_mv 10.1017/S0950268810000051
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subjects Animals
Bacteriology
Biological and medical sciences
Broiler
Campylobacter
Campylobacter - classification
Campylobacter - isolation & purification
Campylobacter Infections - epidemiology
Campylobacter Infections - microbiology
Campylobacter Infections - veterinary
Chickens - microbiology
Density estimation
Epidemiology
Farms
Fundamental and applied biological sciences. Psychology
Geodetic position
Geographic regions
Investigations
K-function
Microbiology
Miscellaneous
Norway - epidemiology
Other infections
Poultry Diseases - epidemiology
Poultry Diseases - microbiology
Predisposing factors
Prevalence
Risk Factors
Space-Time Clustering
Spacetime
spatial epidemiology
Surveillance
Veterinary medicine
title Space–time patterns of Campylobacter spp. colonization in broiler flocks, 2002–2006
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