A noncontagious inflammation of the skin, characterized chiefly by redness, itching, and the outbreak of lesions that may discharge serous matter and become encrusted and scaly.
The PHS collaborated with local doctors and nurses to recruit roughly 400 Black men presumed to have noncontagious late-stage syphilis, as well as 200 non-syphilitic Black men for their control group.
症，主要症状为
红、
状物质、结痂并呈鳞片状。
版）
当地医生和护士合作，招募了大约400
被认
患有
传染性晚期
毒的黑人男性，以及200
