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Incidence of asymptomatic human influenza A(H5N1) virus infection

When virologists Fouchier and Kawaoka were isolating avian influenza H5N1 viruses that could transmit among ferrets by aerosol, there was consternation from some quarters that such viruses might escape from the laboratory and cause a pandemic in humans. Part of the fear came from the fact that the case fatality ratio for human infections with …

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Novel rapid test for influenza H5N1 virus

Last week the US Food and Drug Administration approved a rapid test for determining whether a person is infected with an H5N1 subtype of influenza virus. Why is it better than previously available influenza diagnostic assays? The format of the new assay, according to its developer, ArborVita, “is the familiar lateral-flow rapid antigen assay”. This …

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