Duck hepatitis A virus III type attenuated strain, live vaccine prepared from same and application of live vaccine

The invention discloses a duck hepatitis A virus III type attenuated strain, a live vaccine prepared from the same and application of the live vaccine and belongs to the field of separation and application of the duck hepatitis A virus strain. According to the invention, the duck hepatitis A virus I...

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Bibliographische Detailangaben
Hauptverfasser:	YU HONGTAO, LIU YUANCANG, LI XIN, DING GUOJIE, SUN KAI, WANG BIN, ZHANG CHUNYUAN, LI LAIXU, ZHANG FENGQIANG, ZHANG YI, SONG YANG, ZANG YUTING, SUN DEJUN
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention discloses a duck hepatitis A virus III type attenuated strain, a live vaccine prepared from the same and application of the live vaccine and belongs to the field of separation and application of the duck hepatitis A virus strain. According to the invention, the duck hepatitis A virus III type strain JS with the microbial preservation number of CGMCC No.6852 is separated firstly; the strain is subjected to passage attenuated breeding to obtain a duck hepatitis A virus III type attenuated strain JS57 with stable characters, and the microbial preservation number of the duck hepatitis A virus III type attenuated strain JS57 is CGMCC No.9708. The invention also discloses a method for preparing a live vaccine used for preventing duck hepatitis by utilizing the duck hepatitis A virus III type attenuated strain. The prepared duck hepatitis A virus live vaccine has high immune protection efficiency, immuned ducks can obtain effective immune protection only, the safety is good, and the safety range is wide.