International chicken trade and increased risk for introducing or reintroducing highly pathogenic avian influenza A (H5N1) to uninfected countries  

作　　者：Jennifer M.Radin Richard A.Shaffer Suzanne P.Lindsay Maria Rosario GAraneta Rema Raman James H.Fowler 

机构地区：[1]Joint Doctoral Program in Public Health(Epidemiology),San Diego State University/University of California,San Diego,La Jolla,CA 92093,USA [2]Division of Epidemiology and Biostatistics,San Diego State University,San Diego,CA 92182,USA [3]Department of Family and Preventive Medicine,University of California,San Diego,La Jolla,CA 92093,USA [4]Department of Political Sciences,University of California,San Diego,La Jolla,CA 92093,USA [5]Division of Medical Genetics,University of California,San Diego,La Jolla,CA 92093,USA

出　　处：《Infectious Disease Modelling》2017年第4期412-418,共7页传染病建模（英文）

基　　金：This work is sponsored in part by the Robert Wood Johnson Foundation Pioneer Grant 67919.

摘　　要：Every year billions of chickens are shipped thousands of miles around the globe in order to meet the ever increasing demands for this cheap and nutritious protein source.Unfortunately,transporting chickens internationally can also increase the chance for introducing zoonotic viruses,such as highly pathogenic avian influenza A(H5N1)to new countries.Our study used a retrospective analysis of poultry trading data from 2003 through 2011 to assess the risk of H5N1 poultry infection in an importing country.We found that the risk of infection in an importing country increased by a factor of 1.3(95%CI:1.1e1.5)for every 10-fold increase in live chickens imported from countries experiencing at least one H5N1 poultry case during that year.These results suggest that the risk in a particular country can be significantly reduced if imports from countries experiencing an outbreak are decreased during the year of infection or if biosecurity measures such as screening,vaccination,and infection control practices are increased.These findings show that limiting trade of live chickens or increasing infection control practices during contagious periods may be an important step in reducing the spread of H5N1 and other emerging avian influenza viruses.

关 键 词：Highly pathogenic avian influenza A(H5N1) Poultry trade Transmission model Zoonotic disease 

分 类 号：S85[农业科学—兽医学]