Influence of testicular fluid infected with Treponema pallidum on intradermal lesions.

Abstract
A viscous mucoid fluid occasionally accumulates after intratesticular inoculation of rabbits with T. pallidum. Experiments were performed to assess the effects of this testicular fluid on the development of syphilitic lesions. Injections i.m. of this fluid altered host defences as indicated by shorter incubation periods, reactivation of healing lesions and the presence of lesions at a time when solid immunity should have developed.