Immunological experimental arthritis in pigs. II. The level of complement in the pigs immunized with the Erysipelothrix rhusiopathiae and virus of Aujeszky's disease.

The level of complement was studied in 3 groups of pigs. One group was immunized with Erysipelothrix rhusiopathiae and two remaining groups with virus of Aujeszky's disease. The lowest titers, irrespective of the starting level were shown to exist in all the studied groups in the third week after the last dose of the virus.