In the case of the man there is the additional fact that he frequently is unfortunate enough to run up against this danger when he is under the influence of alcohol. His condition makes it impossible for him to assess the qualities of his 'amorous beauty,' a fact which is well known to every diseased prostitute and makes them single out men in this ideal condition for preference. The result is that the unfortunate man is not able to recollect later on who his compassionate benefactress was, which is not surprising in cities like Berlin and Munich. Many of such cases are visitors from the provinces who, held speechless and enthralled by the magic charm of city life, become an easy prey for prostitutes.

In the final analysis who is able to say whether he has been infected or not?