单词spirochaeta
n.: 【微】螺旋体网络: 螺旋体属；螺旋体索肥素；螺旋体菌
【微生物学】螺旋体
Syphilis is the infectious disease which causes by the syphilitic spirochaeta, mainly disseminates by way of the sex act.
梅毒是由梅毒螺旋体引起的传染病，主要经由性行为传播。