May 13, 1974

The FTA-ABS Test in Dark-Field-Positive Primary Syphilis

Author Affiliations

From the Department of Dermatology (Drs. Duncan and Knox), Baylor College of Medicine, and the Houston City Health Department (Dr. Wende), Houston.

JAMA. 1974;228(7):859-860. doi:10.1001/jama.1974.03230320029022

The fluorescent treponemal antibody absorption (FTA-ABS) test was performed in 77 consecutive patients with dark-field-positive primary syphilis. The test was reactive in 70 of the 77 patients (91%). These results make this serologic test extremely valuable in the diagnosis of syphilis at a time when this disease is on the increase, and the number of well-trained darkfield technicians is on the wane.

(JAMA 228:859-860, 1974)