Comparative evaluation of factors affecting hemagglutinatingactivity of avian influenza (H9) virus

Detection of avian influenza virus of H9 subtype in the feces of experimentally infected chickens by RT–PCR

  Avian Influenza (AI) is a viral respiratory disease of domestic and wild birds. In the diagnostic laboratory, it is essential to have methods for rapid detection of avian respiratory viruses. Cloacal swabs collected from chickens experimentally infected with H9 subtype AI virus, used in a reverse transcription-polymerase chain reaction (RT-PCR) assay for detection of AI. In infected animals, ...

H5 avian and H9 swine influenza virus haemagglutinin structures: possible origin of influenza subtypes.

There are 15 subtypes of influenza A virus (H1-H15), all of which are found in avian species. Three caused pandemics in the last century: H1 in 1918 (and 1977), H2 in 1957 and H3 in 1968. In 1997, an H5 avian virus and in 1999 an H9 virus caused outbreaks of respiratory disease in Hong Kong. We have determined the three-dimensional structures of the haemagglutinins (HAs) from H5 avian and H9 sw...

Standardization of ELISA for Detection of Avian Influenza Virus Antibodies

Isolation and Identification of Avian Influenza Virus H9N2 Subtype

Evaluating the Immunogenicity of Avian Influenza Virus Nucleoprotein

  Background:  Influenza viruses cause Avian Influenza (AI) is a serious infectious disease belonging to type A Orthomyxovirus. A viral RNA synthesis is due to an interaction of the nucleoprotein (NP) with the viral polymerase. In the present study, we have evaluated the immunogenicity of avian influenza virus nucleoprotein.  Materials & Methods:   An Influenza Virus N9H2 subtype A/Chicken I...