Risk factors for infection with highly pathogenic influenza A virus (H5N I) in commercial chickens in Bangladesh
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Risk factors for infection with highly pathogenic influenza A virus (H5N I) in commercial chickens in Bangladesh. / Biswas, P. K.; Christensen, J. P.; Ahmed, S. S.U.; Barua, H.; Das, A.; Rahman, M. H.; Giasuddin, M.; Hannan, A. S.M.A.; Habib, A. M.; Debnath, N. C.
In: Veterinary Record, Vol. 164, No. 24, 13.06.2009, p. 743-746.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Risk factors for infection with highly pathogenic influenza A virus (H5N I) in commercial chickens in Bangladesh
AU - Biswas, P. K.
AU - Christensen, J. P.
AU - Ahmed, S. S.U.
AU - Barua, H.
AU - Das, A.
AU - Rahman, M. H.
AU - Giasuddin, M.
AU - Hannan, A. S.M.A.
AU - Habib, A. M.
AU - Debnath, N. C.
PY - 2009/6/13
Y1 - 2009/6/13
N2 - A matched case-control study was carried out to identify risk factors for highly pathogenic avian influenza A virus (subtype H5N I) infection in commercial chickens in Bangladesh. A total of 33 commercial farms diagnosed with H5N I before September 9, 2007, were enrolled as cases, and 99 geographically matched unaffected farms were enrolled as control farms. Farm data were collected using a pretested questionnaire, and analysed by matched-pair analysis and multivariate conditional logistic regression. Two factors independently and positively associated with H5N I infection remained in the final model. They were 'farm accessible to feral and wild animals' (odds ratio [OR] 5.71, 95 per cent confidence interval [Cl] 1.81 to 18.0, P=0.003) and 'footbath at entry to farm/shed' (OR 4.93, 95 per cent Cl 1.61 to 15.1, P=0005). The use of a designated vehicle for sending eggs to a vendor or market appeared to be a protective factor (OR 0.14, 95 per cent Cl 002 to 0.88, P=0.036).
AB - A matched case-control study was carried out to identify risk factors for highly pathogenic avian influenza A virus (subtype H5N I) infection in commercial chickens in Bangladesh. A total of 33 commercial farms diagnosed with H5N I before September 9, 2007, were enrolled as cases, and 99 geographically matched unaffected farms were enrolled as control farms. Farm data were collected using a pretested questionnaire, and analysed by matched-pair analysis and multivariate conditional logistic regression. Two factors independently and positively associated with H5N I infection remained in the final model. They were 'farm accessible to feral and wild animals' (odds ratio [OR] 5.71, 95 per cent confidence interval [Cl] 1.81 to 18.0, P=0.003) and 'footbath at entry to farm/shed' (OR 4.93, 95 per cent Cl 1.61 to 15.1, P=0005). The use of a designated vehicle for sending eggs to a vendor or market appeared to be a protective factor (OR 0.14, 95 per cent Cl 002 to 0.88, P=0.036).
UR - http://www.scopus.com/inward/record.url?scp=68149141762&partnerID=8YFLogxK
U2 - 10.1136/vr.164.24.743
DO - 10.1136/vr.164.24.743
M3 - Journal article
C2 - 19525522
AN - SCOPUS:68149141762
VL - 164
SP - 743
EP - 746
JO - Veterinary Record
JF - Veterinary Record
SN - 0042-4900
IS - 24
ER -
ID: 200962142