Since the first report of Dienes and Edsall (1937), a number of communications have recorded the isolation of pleuropneumonia-like organisms (PPLO) from the genital tract of the human female, especially in association with inflammatory diseases such as bartholinitis, pelvic abscess, and salpingitis (Melen and Odeblad, 195 1; Randall, Stein, and Ayres, 1950; Dienes, Ropes, Smith, Madoff, and Bau...