A serologic survey for antibodies against H5 subtype influenza virus in 605 apparently healthy local chickens using a hemagglutination inhibition test was carried out in 12 local government areas of Kaduna state, Nigeria. An overall prevalence of 18.1% was recorded, with a higher prevalence of 27.3% in six local government areas that have not reported outbreaks of highly pathogenic avian influenza (HPAI) H5N1 virus and a lower prevalence of 7.5% in six local government areas that had reported and confirmed outbreaks of HPAI H5N1 virus between 2006 and 2007. There was association between the presence of ducks and detection of H5 antibodies (P = 0.000, odds ratio = 0.22). The implication of this finding is discussed, although a virologic investigation to verify the findings of this study is highly recommended.
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1 March 2010
Serologic Evidence of Infection with H5 Subtype Influenza Virus in Apparently Healthy Local Chickens in Kaduna State, Nigeria
A. Durosinlorun,
J. U. Umoh,
P. A. Abdu,
I. Ajogi
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Avian Diseases
Vol. 54 • No. s1
March 2010
Vol. 54 • No. s1
March 2010
apparently healthy
H5
H5N2
Kaduna
local chicken
low pathogenicity avian influenza