Surgery (removing the cancer in an operation) is the most common treatment for all stages of colon cancer. A doctor may remove the cancer using one of the following types of surgery: Local excision: If the cancer is found at a very early stage, the doctor may remove it without cutting through the abdominal wall.
The study began in 1932, when syphilis was a widespread problem and there was no safe and effective treatment. The study was designed to measure the progression of untreated syphilis. By 1947, penicillin had been shown to be an effective cure for early syphilis and was becoming widely used to treat the disease.
Syphilis passed to a baby from the mother (congenital syphilis) may be prevented if the woman is treated before the 16th to 18th weeks of her pregnancy. Treatment after 16 to 18 weeks will cure the infection and stop the damage to the baby. But it may not reverse damage already caused by the infection.