Chen M G
Parasitic Diseases Programme, World Health Organization, Geneva, Switzerland.
Trop Med Parasitol. 1989 Jun;40(2):174-6.
In China, schistosomiasis control has been given a high priority in public health for more than 30 years. Among 372 counties formerly endemic for S. japonicum, transmission has been interrupted in 125 counties and in 141 counties it is under effective control. The numbers of infected persons and infected cattle were estimated to be 10 million and 1.2 million respectively in the 1950s compared with recent estimates of 870,000 (1987) and 100,000 (1986) respectively. Oncomelania snail habitats were reduced from more than 14 billion square metres in 1950s to 3.2 billion square metres in 1987. However, the endemic areas left, mainly in lake and mountainous regions, present greater difficulties and to bring them under control is a long-term task.
在中国，血吸虫病防治工作在公共卫生领域已被高度重视达30多年。在过去日本血吸虫病的372个流行县中，125个县已阻断传播，141个县处于有效控制之下。20世纪50年代估计的感染人数和感染牛数分别为1000万和120万，而最近的估计数分别为87万（1987年）和10万（1986年）。钉螺孳生地从20世纪50年代的超过140亿平方米减少到1987年的32亿平方米。然而，剩下的流行区主要在湖区和山区，面临更大困难，实现控制是一项长期任务。
