Abstract
As the avian influenza virus H5N1 swept from Asia across Russia to Europe, Nigeria was the first country in Africa to report the emergence of this highly pathogenic virus. Here we analyse H5N1 sequences in poultry from two different farms in Lagos state and find that three H5N1 lineages were independently introduced through routes that coincide with the flight paths of migratory birds, although independent trade imports cannot be excluded.
MeSH terms
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Agriculture
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Animal Migration
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Animals
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Asia / epidemiology
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Europe / epidemiology
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Flight, Animal
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Hemagglutinin Glycoproteins, Influenza Virus / genetics
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Influenza A Virus, H5N1 Subtype / genetics*
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Influenza A Virus, H5N1 Subtype / isolation & purification*
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Influenza A Virus, H5N1 Subtype / physiology
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Influenza in Birds / epidemiology
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Influenza in Birds / transmission*
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Influenza in Birds / virology*
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Nigeria / epidemiology
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Phylogeny
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Poultry / physiology
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Poultry / virology*
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Russia / epidemiology
Substances
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Hemagglutinin Glycoproteins, Influenza Virus