[Control of immunity against swine plague by the viral neutralization test on rabbits].

An idea may be got on the properties of the vaccine by applying a specific gamma-globulin against swine fever in pigs, mixed in definite amounts with lapinized K-vaccine and this mixture is injected to rabbits. By studying the mixture of sera from pigs, vaccinated against swine fever prior to a fixed period of time, and the K-vaccine, applied to rabbits, an idea may be obtained on the tension of the immunity and re-vaccination requirements may be assessed.