Serosurvey of five viruses in chickens on smallholdings in Bangladesh.
A serologic survey was undertaken in chickens in smallholdings in Bangladesh for avian influenza A virus (AIV), egg drop syndrome '76 virus (EDS'76V), infectious bronchitis virus (IBV), Newcastle disease virus (NDV) and reovirus (RV) in three phases: January 2002-May 2003, September 2003-August 2004, and August 2005-March 2006. Four hundred thirty-six sera collected in the 2nd phase, 295 in the first phase, 755 in the 1st plus 2nd phases and 295 in the 1st phase were investigated for AIV, EDS'76V, IBV and RV, respectively, using enzyme linked immunosorbent assays. All 854 sera collected in the three phases were screened for NDV using hemagglutination inhibition test. In chickens 20% were seropositive to AIV, 3% to EDS'76V, 74% to IBV, 88% to NDV, and 47% to RV. The seroprevalence in flocks was 23% to AIV, 6% to EDS'76V, 79% to IBV, 89% to NDV and 56% to RV. Twenty-five percent chickens had > or = 10log(2)HI titers to NDV.
Biswas
P K
PK
Department of Microbiology, Chittagong Veterinary and Animal Sciences University, Khulshi, Chittagong 4202, Bangladesh. biswaspk2000@yahoo.com
Barua
H
H
Uddin
G M N
GM
Biswas
D
D
Ahad
A
A
Debnath
N C
NC
D000818:Animals; D000914:Antibodies, Viral / Q000097:blood; D001459:Bangladesh / Q000453:epidemiology; D002645:Chickens; D003430:Cross-Sectional Studies; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D006385:Hemagglutination Inhibition Tests / Q000662:veterinary; D011201:Poultry Diseases / Q000453:epidemiology* / Q000821:virology*; D012327:RNA Virus Infections / Q000453:epidemiology / Q000662:veterinary* / Q000821:virology; D012328:RNA Viruses / Q000302:isolation & purification*; D012424:Rural Population; D016036:Seroepidemiologic Studies
D000914:Antibodies, Viral