沙湾山地位于依连哈比尔尕山北坡,处于玛纳斯山地和鸟苏山地鼠疫疫源地之间;东起于玛纳斯河,西至小安集海河。自1976年以来,在沙湾山地鹿角湾、达子庙、石头沟、白杨沟、大牛、博尔霍拉等地开展了鼠疫自然疫源地调查,共捕啮齿动物8种,调查区内鼠疫主要宿主动物为灰旱獭和长尾黄鼠。采到蚤16种,灰旱獭主要寄生蚤为谢氏山蚤与斧形盖蚤长。尾黄鼠主要寄生蚤为 Citellophilus tesquorum altaicas。用间接血凝从鹿角湾牧犬血中检出阳性12份,博尔霍拉牧犬血中检出阳性2份;反向血凝从自毙獭中检出阳性2份。用细菌学方法从博尔霍拉自毙獭体内分离出鼠疫菌1株,从黄鼠的方形黄鼠蚤中分离出鼠疫苗2株。根据以上资料,首次判定沙湾山地存在鼠疫自然疫源地,而后山博尔霍拉为灰旱獭和长尾黄鼠为宿主的双宿主鼠疫自然疫源地。现已查出的疫源地面积约为1600公顷。 Shawan Mountain is located on the northern slopes of Gajanshan Mountain in El Habib, between the Manas Mountains and the Bird Mountain Squirrels. From the east lies the Manas River to the west and to the Little Anjihai River. Since 1976, a total of 8 rodents have been investigated in Antlers Bay, Tatsumiao, Shitougou, Baiyanggou, Daniu and Borgolla in the Shawan Mountains, The main host animals plague plague marmot and long-tailed squirrels. 16 species of fleas were collected, and the main parasitic fleas of the gray marmot were Xie Shan Shan fleas and Ax-shaped fleas. The main parasitic flea of ​​the caudat is Citellophilus tesquorum altaicas. With indirect hemagglutination, 12 positive samples were detected in the blood of Antlers Bay, 2 were positive in the blood of Borjolam and 2 were positive in the reverse hemagglutination. Bacteriological method from Borjola from body in vivo isolated from a plague bacteria, from the rat yellow square rat fleas isolated two murine vaccine. Based on the above information, it was first determined that there was a natural epidemic of plague in the mountainous area of ​​Shawan and then Borehora was the natural foci of dual-host plague in the host. The foci of land now identified is about 1,600 hectares.