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Farm‐level risk factors associated with bovine tuberculosis in the dairy sector in Eritrea
Author(s) -
Ghebremariam M. K.,
Michel A. L.,
Nielen M.,
Vernooij J. C. M.,
Rutten V. P. M. G.
Publication year - 2018
Publication title -
transboundary and emerging diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.392
H-Index - 63
eISSN - 1865-1682
pISSN - 1865-1674
DOI - 10.1111/tbed.12622
Subject(s) - herd , bovine tuberculosis , logistic regression , environmental health , stratified sampling , veterinary medicine , medicine , demography , tuberculosis , mycobacterium bovis , mycobacterium tuberculosis , pathology , sociology
Summary The aim of our study was to determine the association of selected potential risk factors with the presence of bovine tuberculosis ( BTB ) in dairy herds in Eritrea. A case–control study was conducted in the three major milk‐producing regions of the country by stratified random sampling of 61 case and 65 control herds combined with completion of a standardized pretested questionnaire pertaining 36 relevant risk factors (variables). The variables were divided into two clusters, based on potential association with either “introduction” or “establishment” of BTB on the farms to elucidate association with incident or prevalent cases separately. Subsequent to univariable analysis of the 36 risk factors at herd level, 14 of these were offered to multivariable logistic regression models. Farms with higher numbers of cows, and those with concrete floors, were 3.6, and 7.5 times more at risk for presence of BTB , respectively, compared with their references. These findings will be useful as entry points for future informed decision‐making towards BTB control and eradication programme in the country.