Combined live vaccine against porcine reproductive and respiratory syndrome, swine fever and pseudorabies, and preparation method thereof

A technology for respiratory syndrome and pseudorabies, which can be used in medical preparations, antiviral agents, and pharmaceutical formulations containing active ingredients, which can solve problems such as being difficult to achieve, affecting the effect of disease prevention, and time-consuming and labor-intensive.
CN102727882AActive Publication Date: 2012-10-17华威特(江苏)生物制药有限公司
6 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
华威特(江苏)生物制药有限公司
Publication Date
2012-10-17

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a combined live vaccine for preventing porcine reproductive and respiratory syndrome, swine fever and pseudorabies, and a preparation method and application thereof. According to the invention, no immunosuppression occurs among three vaccine strains of the combined live vaccine; the combined live vaccine is identical with each single vaccine in the aspects of security, immunogenicity, immunity duration and immuno-protective effects, but in the aspect of convenience, the combined live vaccine is more convenient than each single vaccine since prevention of three diseases is realized through only one immunization; thus, work load of immunization and inoculation is mitigated, stress on swinery is reduced, and immunological paralysis and immunological failure caused by frequent immunization are avoided, thereby achieving the effect of preventing porcine reproductive and respiratory syndrome, swine fever and pseudorabies.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of veterinary biological products, and more specifically relates to a triple vaccine for porcine reproductive and respiratory syndrome, swine fever and pseudorabies and a preparation method thereof. Background technique

[0002] Porcine reproductive and respiratory syndrome is a highly contagious disease of pigs caused by porcine reproductive and respiratory syndrome virus (Porcine productive and respiratory syndrome virus, PRRSV). A highly contagious viral disease characterized by respiratory symptoms and high mortality in fetuses, stillbirths, weak piglets and piglets. At present, the disease is prevalent in all pig-raising countries in the world, and its prevalence and distribution in China are becoming more and more extensive, and the harm is also becoming more and more serious.

[0003] Pseudorabies (PR) is an important infectious disease caused by pseudorabies virus (PRvirus, PRV) in various domestic ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More