Introduction into Nigeria of a Distinct Genotype of Avian Influenza Virus (H5N1)

摘要

Genetic characterization of highly pathogenic avian in-. uenza viruses (H5N1) isolated in July 2008 in Nigeria indi-cates that a distinct genotype, never before detected in Af-rica, reached the continent. Phylogenetic analysis showed that the viruses are genetically closely related to European and Middle Eastern in. uenza A (H5N1) isolates detected in 2007