Influenza A, H1N1, Hemagglutin

PCR for the Detection of Influenza Viruses in Clinical Material

). Influenza A viruses are further divided into subtypes H1N1, H2N2 and H3N2, based on differences in the hemagglutinin (HA) and neuraminidase (NA) genes. The ability of influenza viruses to undergo antigenic change in HA and NA enables the virus to evade

Genetic Engineering of Live Attenuated Influenza Viruses

vaccine strain is a reassortant virus that contains the hemagglutinin (HA) and neuraminidase (NA) gene segments from a wild-type influenza virus and the six internal protein gene segments from a master donor virus (MDV) of either cold-adapted A/Ann Arbor

Hemagglutination-Inhibition Test for Avian Influenza Virus Subtype Identification and the Detection and Quantitation of Serum Antibodies to the Avian

The hemagglutination-inhibition (HI) assay is a classical laboratory procedure for the classification or subtyping of hemagglutinating viruses. For the avian influenza (AI) virus, the HI assay is used to identify the hemagglutinin (H) subtype