The Kato-Katz thick smear stool examination is a traditional diagnostic method to assessing S.japonicum infection which has been widely used in the disease control program.

• 镜检粪便中的血吸虫卵是传统的直接诊断方法，其中改良加藤法操作简便、设备简单、特异性高，是当前广泛使用的方法。