A kind of vaccine composition and its preparation method and application

A vaccine composition and antigen technology, applied in the field of vaccine compositions, can solve the problems of the quality decline of the preventive effect, stress and safety problems, etc.
CN104338128BActive Publication Date: 2017-09-05PU LIKE BIO ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
PU LIKE BIO ENG
Publication Date
2017-09-05

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Abstract

The invention provides a vaccine composition, which contains immunological amount of SIV, Mhp, APP antigen and veterinary acceptable carrier. The immunization procedure of the vaccine composition is simple, and can effectively prevent and treat the single infection or mixed infection of SIV, Mhp and APP. When mixed infection occurs, the immune effect is significantly higher than that of single vaccine injections respectively. The vaccine composition has few side effects, long immunization period, less time-consuming and labor-intensive production process, low immunization cost and strong practicability.
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Description

technical field

[0001] The present invention relates to a vaccine composition. Background technique

[0002] Swine influenza (SI) is an acute, febrile and highly contagious respiratory infectious disease caused by swine influenza virus (SIV), characterized by sudden onset, cough, dyspnea, fever and failure, and subsequent rapid recovery or death as a feature. Pigs of all varieties, genders and ages can be infected with a high incidence rate. When influenza breaks out in pig herds, the incidence rate can reach 100%. The typical clinical symptoms of swine flu are runny nose, cough and dyspnea, accompanied by fever, lethargy and subsequent anorexia and weight loss. SIV seldom causes death in the case of single infection, but mixed infection with PRRSV, PCV2 and Mhp will significantly increase the degree of damage and fatality of the above diseases. In addition, SIV is also the main pathogen of porcine respiratory disease syndrome. The damage caused by co-infection or second...

Claims

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