Youming Wang1, Peng Li2, Yangli Wu2, Xiangdong Sun3, Kangzhen Yu3, Chuanhua Yu4, Aijian Qin5. 1. Faculty of Animal Medicine, Yangzhou University, Yangzhou 225009, China; Department of Epidemiology Survey, China Animal Health and Epidemiology Center, Qingdao 206032, China. 2. School of Public Health, Wuhan University, Wuhan 430071, China. 3. Department of Epidemiology Survey, China Animal Health and Epidemiology Center, Qingdao 206032, China. 4. School of Public Health, Wuhan University, Wuhan 430071, China. Electronic address: yuchua@whu.edu.cn. 5. Faculty of Animal Medicine, Yangzhou University, Yangzhou 225009, China. Electronic address: aijian@yzu.edu.cn.
Abstract
BACKGROUND: Avian influenza is a severe threat both to humans and poultry, but so far, no systematic review on the identification and evaluation of the risk factors of avian influenza infection has been published. The objective of this meta-analysis is to provide evidence for decision-making and further research on AI prevention through identifying the risk factors associated with AI infection on poultry farms. METHODS: The results from 15 selected studies on risk factors for AI infections on poultry farms were analyzed quantitatively by meta-analysis. RESULTS: Open water source (OR=2.89), infections on nearby farms (OR=4.54), other livestock (OR=1.90) and disinfection of farm (OR=0.54) have significant association with AI infection on poultry farms. The subgroup analysis results indicate that there exist different risk factors for AI infections in different types of farms. CONCLUSIONS: The main risk factors for AI infection in poultry farms are environmental conditions (open water source, infections on nearby farms), keeping other livestock on the same farm and no disinfection of the farm.
BACKGROUND: Avian influenza is a severe threat both to humans and poultry, but so far, no systematic review on the identification and evaluation of the risk factors of avian influenza infection has been published. The objective of this meta-analysis is to provide evidence for decision-making and further research on AI prevention through identifying the risk factors associated with AI infection on poultry farms. METHODS: The results from 15 selected studies on risk factors for AI infections on poultry farms were analyzed quantitatively by meta-analysis. RESULTS: Open water source (OR=2.89), infections on nearby farms (OR=4.54), other livestock (OR=1.90) and disinfection of farm (OR=0.54) have significant association with AI infection on poultry farms. The subgroup analysis results indicate that there exist different risk factors for AI infections in different types of farms. CONCLUSIONS: The main risk factors for AI infection in poultry farms are environmental conditions (open water source, infections on nearby farms), keeping other livestock on the same farm and no disinfection of the farm.
Authors: Meilan An; Jeffrey Vitale; Kwideok Han; John N Ng'ombe; Inbae Ji Journal: Int J Environ Res Public Health Date: 2021-04-13 Impact factor: 3.390