Molecular characterization and epidemiology of the highly pathogenic avian influenza H5N1 in Nigeria
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Date
Authors
Fasina, Folorunso Oludayo
Bisschop, S.P.R. (Shahn)
Joannis, Tony M.
Lombin, L.H.
Abolnik, Celia
Journal Title
Journal ISSN
Volume Title
Publisher
Cambridge University Press
Abstract
Avian influenza caused infection and spread throughout Nigeria in 2006. Carcass samples (lung,liver, spleen, heart, trachea and intestine) from the different regions of Nigeria were processed for virus isolation. Infective allantoic fluids were tested for avian influenza viruses (AIV) and
Newcastle disease virus using monospecific antisera. Thirty-five isolates were generated and characterized molecularly using the haemagglutinin gene. The molecular analysis indicated that
different sublineages of the highly pathogenic avian influenza (HPAI) H5N1 viruses spread throughout Nigeria. We compared the Nigerian isolates with others from Africa and results indicated close similarities between isolates from West Africa and Sudan. Some of the analysed
viruses showed genetic drift, and the implications of these for future epidemiology and ecology of avian influenza in Africa require further evaluation. The spread of primary outbreaks was strongly linked to trade (legal and illegal), live bird markets, inappropriate disposal, and poorly implemented control measures. No strong correlation existed between wild birds and HPAI H5N1 in Nigeria.
Description
Keywords
Avian influenza virus (H5N1)
Sustainable Development Goals
Citation
Fasina, FO, Bisschop, SPR, Joannis, TM, Lombin, LH & Abolnik, C 2009, ‘Molecular characterization and epidemiology of the highly pathogenic avian influenza H5N1 in Nigeria’, Epidemiology and Infection, vol. 137, no. 4, pp. 456–463.[http://www.journals.cambridge.org/action/displayJournal?jid=HYG]