n.[微]衣原体；衣原体疾病
Most women infected with chlamydia have no symptoms. 大多数感染了衣原体的女性没有症状。
There are more cases of chlamydia in Africa than in Asia. 衣原体病例在非洲比亚洲更多。
One recent survey identified a disturbing rise in incidences of chlamydia among Japanese teenagers. 衣原体疾病会不但导致骨盆感染和不育症，还容易使患者感染上艾滋病病毒。
