Retracted: Risks of Avian Influenza ( H 5) in Duck Farms in the A yeyarwaddy Delta Region, M yanmar

Summary The A yeyarwaddy delta region in the south‐west of M yanmar is the main agricultural and rice‐growing area. The region has a high density of duck and backyard chicken populations with low biosecurity. The objective of this study was to analyse risk factors for avian influenza ( H 5) in the A yeyarwaddy delta region, M yanmar. A case–control risk factor study was conducted from April to June 2010 by individual interviews including risk factor questionnaires given to duck farmers ( n  = 50) in five townships in the A yeyarwaddy delta region, M yanmar. Risk factor analyses were conducted using univariate analysis and multivariate logistic regression model with backward stepwise (wald) method. The results showed significant risk factors for AI ( H 5) sero‐positivity in ducks were wooden egg box containers (OR = 52.7, 95% CI = 2.34–1188, P  = 0.013) and water sourced from wetlands (OR = 30.7, 95% CI = 1.96–481.6, P  = 0.015). Conversely, the cleaning of reusable egg containers was determined as a protective factor (OR = 0.03, 95% CI = 0.00–0.42, P  = 0.01). In conclusion, this study identified risk factors for AI ( H 5) in duck farms and the importance of avian influenza prevention and control.