A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA

Reisolation of Mycobacterium bovis from inoculated substrates was used to follow the persistence of viable M. bovis bacteria exposed to natural weather conditions over a 12-month period. Environmental factors were recorded continuously, and factors affecting M. bovis persistence (i.e., temperature,...

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Main Authors: Amanda E. Fine, Carole A. Bolin, Joseph C. Gardiner, John B. Kaneene
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:Veterinary Medicine International
Online Access:http://dx.doi.org/10.4061/2011/765430
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author Amanda E. Fine
Carole A. Bolin
Joseph C. Gardiner
John B. Kaneene
author_facet Amanda E. Fine
Carole A. Bolin
Joseph C. Gardiner
John B. Kaneene
author_sort Amanda E. Fine
collection DOAJ
description Reisolation of Mycobacterium bovis from inoculated substrates was used to follow the persistence of viable M. bovis bacteria exposed to natural weather conditions over a 12-month period. Environmental factors were recorded continuously, and factors affecting M. bovis persistence (i.e., temperature, season, and substrate) were studied using survival analysis and Cox's proportional hazards regression. Persistence of M. bovis in the environment was significantly shorter in the spring/summer season, characterized by the highest average daily temperatures over the 12-month period. M. bovis persisted up to 88 days in soil, 58 days in water and hay, and 43 days on corn. These studies demonstrate that M. bovis bacteria persist long enough to represent a risk of exposure for cattle and/or wildlife and strengthen evidence that suggests cattle farm biosecurity and efforts to eliminate supplemental feeding of white-tailed deer will decrease the risk of bovine TB transmission among and between cattle and deer populations.
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spelling doaj-art-daec7ca709b5425f919c822136f2eed42025-08-20T03:24:25ZengWileyVeterinary Medicine International2042-00482011-01-01201110.4061/2011/765430765430A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USAAmanda E. Fine0Carole A. Bolin1Joseph C. Gardiner2John B. Kaneene3Department of Large Animal Clinical Sciences and Center for Comparative Epidemiology, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824-1314, USADiagnostic Center for Population and Animal Health, Michigan State University, 4125 Beaumont Road, Lansing, MI 48910-8104, USADepartment of Epidemiology, College of Human Medicine, Michigan State University, B601 West Fee Hall, East Lansing, MI 48824, USADepartment of Large Animal Clinical Sciences and Center for Comparative Epidemiology, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824-1314, USAReisolation of Mycobacterium bovis from inoculated substrates was used to follow the persistence of viable M. bovis bacteria exposed to natural weather conditions over a 12-month period. Environmental factors were recorded continuously, and factors affecting M. bovis persistence (i.e., temperature, season, and substrate) were studied using survival analysis and Cox's proportional hazards regression. Persistence of M. bovis in the environment was significantly shorter in the spring/summer season, characterized by the highest average daily temperatures over the 12-month period. M. bovis persisted up to 88 days in soil, 58 days in water and hay, and 43 days on corn. These studies demonstrate that M. bovis bacteria persist long enough to represent a risk of exposure for cattle and/or wildlife and strengthen evidence that suggests cattle farm biosecurity and efforts to eliminate supplemental feeding of white-tailed deer will decrease the risk of bovine TB transmission among and between cattle and deer populations.http://dx.doi.org/10.4061/2011/765430
spellingShingle Amanda E. Fine
Carole A. Bolin
Joseph C. Gardiner
John B. Kaneene
A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA
Veterinary Medicine International
title A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA
title_full A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA
title_fullStr A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA
title_full_unstemmed A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA
title_short A Study of the Persistence of Mycobacterium bovis in the Environment under Natural Weather Conditions in Michigan, USA
title_sort study of the persistence of mycobacterium bovis in the environment under natural weather conditions in michigan usa
url http://dx.doi.org/10.4061/2011/765430
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