Acrodynamic

If the bacillus, discovered in 1884 by Lustgarten,” in Weigert's laboratory, is really the specific virus of syphilis, this bacillus undoubtedly belongs to the general acrodynamic bacteria, though giving rise to a remarkably slow dynamic evolution of the organisms, this latter remaining unusually long in the different states that correspond to the different degrees of the dynamic evolution of syphilis.

Natural and acquired immunity against general acrodynamic bacteria represents the same condition of the system.