Successively no clinical manifestations were 30 cases,but the RPR and TPHA were positive,they were mostly born to the mothers suffering syphilis at pregnancy and be treated.

• 无临床表现 30例 ,多为母亲孕期筛查出梅毒或在妊娠晚期感染梅毒且予以驱梅治疗后所生新生儿 ,但梅毒血清学检查阳性。