Patent · US Expired

Purified and antigenically selective vaccines for domestic animals

US4493825A · kind A · utility

19Cited by
2References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 5, 1982
Grant dateJan 15, 1985
Priority date—
Expiry dateOct 5, 2002

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC12N2710/16734
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Purified antigenically selective vaccines for domestic animals are prepared from microorganism cultures containing the immunizing agent by first complexing the immunizing agent with micro-particles having bound IgG antibodies specific for the immunizing agent, separating the resulting complex, and preparing a vaccine directly therefrom containing the antigen-antibody complex. The micro-particles preferably have Protein A in their outer surfaces for binding to the specific antibodies. The complex-containing vaccines provide effective immunization. The method and the resulting vaccines are particularly useful in preparing viral and bacterial subunit vaccines.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.