Objective To observe the effect of different subclinical doses of praziquantel on the serum gut-associated cathodic antigen (GACA) levels in the patients with chronic schistosomiasis.

• 目的观察不同亚治疗剂量吡喹酮对慢性血吸虫病患者血清血吸虫肠相关趋阴极抗原(GACA)水平的影响。