[Riems foot-and-mouth disease oil emulsion vaccines for swine. 1. Development and testing of highly effective and well-tolerated foot-and-mouth disease vaccine for swine using Dessauer oil adjuvants].

Swine plays a very particular role in FMD epizootiology. It is, therefore, absolutely necessary to have highly effective vaccines available for this species at all times. They have to ensure early buildup of long-lasting strong immunity even after one single application. Since the effectiveness of conventional adsorbate vaccines had proved to be insufficient, monovalent and trivalent oil emulsion vaccines were specifically developed of swine, using a GDR-made oil adjuvant. Stable immunity is very soon induced by them to endangered pig stock even against the immunologically problematic sub-types O1 and A5 after one single subcutaneous (s.c.) application of 2 ml (monovalent) or 5 ml (trivalent). Application establishes in s.c. connective tissue an oil emulsion depot that leads to formation of a vaccination granuloma. The immunocompetent cells identified in the latter are morphologically correlated to adjuvant action.