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西藏那曲镇海拔4507m，高寒缺氧，年平均气温－2．1℃，许多疾病的发病情况与全国其它省区有所不同。我们于1997年9月对那曲镇五所小学2427名藏、汉族学生进行了肠道统虫感染情况调查。现报告如下：调查对象：西藏那曲镇五所小学在校藏、汉族学生为本次调查对象，其中有地区小
Nagqu Town, Tibet 4507m above sea level, cold and anoxia, the annual average temperature of -2.1 ℃, many diseases and other provinces and autonomous regions are different. In September 1997, we conducted a survey of 2430 Tibetan and Han students in five primary schools in Nagqu Town about the status of intestinal omniviruses. The report is as follows: Survey respondents: Five primary schools in Naqu Town, Tibet are in the school possession. Han Chinese students are the subjects of this survey. Among them, there are small