H9 subtype avian influenza virus inactivated vaccine including chicken a-interferon protein

• Main Authors: WANG XIULI, GUO WEIWEI, GONG XIAO, LIU XINWEN, DU YUANZHAO, HU XIAO
• Format: Patent
• Language: English
• Published: 30.09.2015
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

The invention provides an H9 subtype avian influenza virus inactivated vaccine including chicken a-interferon protein. The H9 subtype avian influenza virus inactivated vaccine comprises an antigen and a vaccine adjuvant, and the adopted antigen is an inactivated H9 subtype avian influenza virus QDY1 strain including the chicken a-interferon protein. A screened H9 subtype avian influenza virus has the advantages of being small in virulence and high in immunogenicity. The H9 subtype avian influenza virus (QDY strain) is inoculated into a chick embryo, then collects virus liquid, and is mixed with the extracted and purified chicken a-interferon protein after inactivation of formaldehyde solutions, and an oil adjuvant is added for emulsification to manufacture the vaccine. The prepared vaccine can stimulate an organism to generate an antibody fast, the level of the antibody is improved, the persistent period of the antibody is prolonged, and diseases caused by the H9 subtype avian influenza virus is prevented. The vaccine has the advantages of being efficient and good in safety.