Assessment of hygienic conditions of live bird markets on avian influenza in Chittagong metro, Bangladesh

Publication date: Available online 30 April 2017 Source:Preventive Veterinary Medicine Author(s): Abu Sayeed, Casey Smallwood, Tasneem Imam, Rashed Mahmud, Rubyath Binte Hasan, Mahmudul Hasan, M. Sawkat Anwer, Harun Rashid, Ahasanul Hoque Live Bird Markets (LBMs) in Asian countries are considered as hubs for the spread and maintenance of different infectious diseases. In Bangladesh, LBMs are the major source of live and dressed poultry to consumers and until now only a few studies have been conducted targeting infectious agent status such as avian influenza virus (AIV) prevalence of LBMs in Bangladesh. Therefore, a cross sectional study was conducted using all 40 LBMs within the Chittagong Metropolitan Area (CMA) of Bangladesh targeting demographic information and hygienic status of LBMs in concurrence with AIV prevalence and its subtype distribution, as well as the associated risk factors for AIV. Pooled environmental swab samples were collected from 2 to 9 different sites per stall, with epidemiological data being obtained from a total of 290 stalls across 40 LBMs. The samples were evaluated by Real Time Reverse Transcriptase Polymerase Chain Reaction. The prevalence of AIV was 40% (95% CI: 20–60%; N=40) at a LBM level followed by 20.3% (CI: 10–30%, N=290) at a stall level. Specifically, the prevalence of H5, H7 and H9 subtypes at stall level were 2.8% (CI: 1–5%), 0% (95% CI: 0–1.3%) and 3.1% (CI: 1–6%), respectively. Generalized Estimating Equation mod...
Source: Preventive Veterinary Medicine - Category: Veterinary Research Source Type: research