“Quacks or quack salvers are named from quicksilver ointment peddlers who treated syphilis in the 16th century.”

“After the secondary stage, some people with syphilis progress to a latent stage where they have no more symptoms.”

“At the turn of the century syphilis and hepatitis were also on the increase.”

“The discovery of penicillin led to effective treatment of primary and secondary syphilis, the near disappearance of the late effects of syphilis, and in fact, the disappearance of the field of syphilology.”

“This inquiry was also sent to the members of the editorial board of the Archives of dermatology and Syphilology.”