title: Determination of the seroprevalence of Newcastle disease virus (avian paramyxovirus type 1) in Zambian backyard chicken flocks.
abstract: A cross-sectional study was conducted in five provinces and 11 districts of Zambia to  determine the seroprevalence of Newcastle disease in Zambian backyard chicken flocks. Of  the chickens sampled, 73.9%  tested positive for avian paramyxovirus type 1 antibodies by  means of an enzyme-linked immunosorbent assay. Seroprevalence varied amongst the five  provinces sampled, ranging from 82.6% in the Eastern Province to 48.3% in Luapula Province.  Seroprevalence also varied amongst the 11 districts sampled, ranging from 91.3% in Monze  district of Southern Province to 22.8% in Mufulira district of the Copperbelt province. Overall,  the seroprevalence of Newcastle disease in Zambian backyard chicken flocks has increased  since the previous study conducted in 1994.
authors: Department of Veterinary and Tsetse Control Services, Ministry of Agriculture and Livestock, Zambia; Department of Veterinary Tropical Diseases, University of Pretoria, South Africa. chimukamusako@yahoo.com.
authors: Chimuka
authors: C
authors: Musako
authors: Celia
authors: C
authors: Abolnik
mesh_terms: D000818:Animals; D000914:Antibodies, Viral / Q000097:blood*; D002645:Chickens; D009521:Newcastle Disease / Q000453:epidemiology*; D009522:Newcastle disease virus / Q000276:immunology*; D011201:Poultry Diseases / Q000453:epidemiology*; D016036:Seroepidemiologic Studies; D015024:Zambia / Q000453:epidemiology
chemical_list: D000914:Antibodies, Viral