Document Detail


The seasonal variation of thermophilic campylobacters in beef cattle, dairy cattle and calves.
MedLine Citation:
PMID:  9750278     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The epidemiology of clinical cases of campylobacter in temperate climates shows a striking seasonality. In the search for a seasonal environmental reservoir changes in the carriage rate and population size of campylobacters in bovine hosts with time have been measured. Most probable number (MPN) methodology was used to enumerate thermophilic campylobacters in samples taken from the small intestines of beef cattle at slaughter and the fresh faeces of four dairy herds and new-born calves. Statistical analyses revealed significant evidence for seasonal periodicity in the data from dairy herds (P = 0.044). Not only was there a departure from constancy within a 12-month interval but these data revealed a true seasonality, that is, the same periodicity in numbers from one year to the next. Each herd had two peaks per year, in approximately spring and autumn. Peaks coincided in herds on neighbouring farms but those on farms in the north preceded those on farms in the south by 2 and 1 months, respectively (P = 0.0057). Intestinal carriage by beef cattle at slaughter was 89.4% (n = 360) with an average MPN campylobacters per gram fresh weight (MPN gfw-1) of 6.1 x 10(2). Average MPN gfw-1 in faeces from the dairy herds and calves were 69.9 (S.D. 3) and 3.3 x 10(4) (S.D. 1.7 x 10(2)). There was no evidence of seasonal periodicity in the size of the campylobacter population in beef cattle at slaughter. Calves were campylobacter free at birth but became colonized with a few days.
Authors:
K N Stanley; J S Wallace; J E Currie; P J Diggle; K Jones
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of applied microbiology     Volume:  85     ISSN:  1364-5072     ISO Abbreviation:  J. Appl. Microbiol.     Publication Date:  1998 Sep 
Date Detail:
Created Date:  1998-12-07     Completed Date:  1998-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9706280     Medline TA:  J Appl Microbiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  472-80     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, Lancaster University, Lancaster, UK. k.stanley@lancaster.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animals
Campylobacter
Campylobacter Infections / microbiology,  pathology,  veterinary*
Cattle
Cattle Diseases / microbiology*,  pathology
Seasons*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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