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木里藏族自治县位于四川省西南部,是全国仅有两个藏族自治县之一的国定重点贫困县,2008年底总人口131726人,境内居住着18种民族,幅员面积13252平方公里,地貌形态复杂多样,属典型的高山峡谷地貌,全县平均海拔3000-3500米,全县有3个镇,26个乡(其中5个民族乡),9个国营牧场,113个行政村,603个村民小组,地广人稀,交通极为不便。平均每平方公里9人。我县部分边远的乡镇由于不通路、不通电,疫苗无法在冷链条件下运输和储存,加之专业人员缺乏,目标儿童的常规免疫接种工作难以开展,存在免疫空白,不能建立有效的儿童免疫屏障。2008年在我县最边远的
Muli Tibetan Autonomous County is located in the southwest of Sichuan Province, is the only one of the two Tibetan Autonomous County national key poverty-stricken counties, the total population of 131,726 by the end of 2008, the territory of 18 ethnic groups, covering an area of 13,252 square kilometers, complex and diverse topography , Is a typical alpine valley landscape, the county average elevation of 3000-3500 meters, the county has 3 towns, 26 townships (including 5 ethnic townships), 9 state ranches, 113 administrative villages, 603 villagers group, Sparsely populated, traffic is very inconvenient. An average of 9 people per square kilometer. Due to lack of access and electricity in some remote townships in our county, vaccines can not be transported and stored under cold chain conditions. In addition to the lack of professionals, routine immunization of target children is difficult to carry out and there is an immune blank and can not establish an effective child immune barrier . In 2008 the most remote in our county