Analysis of data generated
Descriptive analysis was performed using the questionnaire data from the first phase, to describe the populations and pertinent husbandry and management practices. The data generated were used to perform Social Network Analysis (SNA). Contact networks were defined for each enterprise type on the basis of information provided by the respondents on poultry movements between enterprises. Centrality scores examined included in-degree, out-degree and betweenness. The properties of each network were assessed.
The results of sample testing were analysed descriptively to show differences between the enterprise types and the sampling rounds. Hypothesis tests (Fisher’s Exact test) were done to investigate whether the differences between the proportions of positive H5 test results differed between the enterprise types. The results of the testing for H9 AIV were investigated to provide information on presence, persistence and co-circulation with H5 virus.