This chart shows the results of an epidemiological investigation of cases of syphilis.
"A physician in a middlewestern city asked the State Health Department to trace the source of infection in 3 cases of newly acquired infectious syphilis in his…
This poster describes long- and short-term social hygiene programs.
"The Hare-Emergency Program: Treatment of every carrier of syphilis infection. The Tortoise-Long-Range Educational Program: Building in children and youth habits of self-control…