Abstract:
:A case-control study conducted during 2011 involved 90 randomly selected commercial layer farms infected with highly pathogenic avian influenza type A subtype H5N1 (HPAI) and 175 control farms randomly selected from within 5 km of infected farms. A questionnaire was designed to obtain information about potential risk factors for contracting HPAI and was administered to farm owners or managers. Logistic regression analyses were conducted to identify significant risk factors. A total of 20 of 43 risk factors for contracting HPAI were identified after univariable logistic regression analysis. A multivariable logistic regression model was derived by forward stepwise selection. Both unmatched and matched analyses were performed. The key risk factors identified were numbers of staff, frequency of veterinary visits, presence of village chickens roaming on the farm and staff trading birds. Aggregating these findings with those from other studies resulted in a list of 16 key risk factors identified in Bangladesh. Most of these related to biosecurity. It is considered feasible for Bangladesh to achieve a very low incidence of HPAI. Using the cumulative list of risk factors to enhance biosecurity pertaining to commercial farms would facilitate this objective.
journal_name
Transbound Emerg Disjournal_title
Transboundary and emerging diseasesauthors
Osmani MG,Thornton RN,Dhand NK,Hoque MA,Milon SM,Kalam MA,Hossain M,Yamage Mdoi
10.1111/tbed.12071subject
Has Abstractpub_date
2014-12-01 00:00:00pages
e44-51issue
6eissn
1865-1674issn
1865-1682journal_volume
61pub_type
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