疫源地

Results Five DFRs were found. One of the DFR of 383 bp was specific to biovar antiqua. The 383 bp fragment was only found in strains of Y.pestis isolated from Marmota baibacina Spermophilus undulates Plague Focus of the Tianshan Mountains, but not found in strains from other Plague Foci. It was also found in two (belonging to biotypeⅠ and Ⅱ) of five strains of Y.pseudotuberculosis .

结果 发现了5个在不同生物型鼠疫菌间存在差异的DNA片段，其中一个383bp的片段在来自天山山地灰旱獭、长尾黄鼠鼠疫自然疫源地的30株鼠疫菌全部阳性，而来自其它鼠疫自然疫源地的菌株全部阴性，5株假结核耶尔森菌中有2株阳性。

There are also foci mainly with campestral hosts of Apodemus agrarius and Apodemus draca and Eothenomys miletus in the monitoring areas.

监测区内存在以褐家鼠和黄胸鼠为主要宿主的家鼠型疫源地，也存在着以高山姬鼠、中华姬鼠和大绒鼠为主的野鼠型疫源地。

Marmota himalayana, Microtus oeconomus, Mus musculus, Cricetulus longicaudatus, Ochotona curzoniae, Felis catus, Canis familiaris, Vulpes vulpes, Vulpes corsac, Canis upus, Mustela eversmanni distributed widely in Sanjiangyuan Area.

三江源地区喜马拉雅旱獭、根田鼠、小家鼠、长尾仓鼠、高原鼠兔、猫、犬、赤狐、沙狐、狼、艾鼬等广泛分布，其中喜马拉雅旱獭是青藏高原喜马拉雅旱獭鼠疫自然疫源地的主要宿主。

These are the foci for his theological reflection.

这是疫源地，为他的神学反思的时候了。

To explore the application and geoepidemiological significance of the 2D minimal spanning tree model in analyzing the spatial structure of natural focal disease.

目的探讨二维最小生成树模型在分析自然疫源性疾病疫源地空间结构中的地理流行病学意义及其实际应用价值。

Objective Investigation was precced in rodent's Yesinia in plague focus and non-plague focus fo Guangdong,to understand the circumstance that the distrbution of Yersinla,and whether the restrained phenomenon of yersinia was existed. Meth-ods IHA and RIP was used for surveying the particular FI Ab of yersinia pestis.Yersinia pestis were surveyed by plague culture me-dia.The contents of ileocecal part,the liver,the spleen and the tongue of rodent's were put into PBS that were propagated（4℃）for3weeks,then the above PBS liquid was smeared on selective culture media to sarvey yersina enterocolitica and Yersina pseudotuberculosis etc.

目的 了解广东省鼠疫疫源地和非鼠疫疫源地鼠类耶尔森氏菌的分布和相互抑制的情况方法分别采用间接血球凝集试验、放射免疫沉淀试验进行鼠疫耶尔森氏菌特异性F1抗体检测，并分别对鼠类回盲部内容物和肝、脾、舌进行冷增菌后，以选择培养基分离。

Objective:To obtain Rickettsia tsutsugamushi antibody levelin patients and healthy population of epidemic area and non-epidemic area, and to get the seroepidemiological pattern of tsutsugamushi disease in Hebei province based on serological typing and dynamic observation.

目的：对河北省恙虫病疫源地内病例进行血清学分型和抗体动态观察，了解疫源地和非疫源地内人群恙虫病抗体阳性率，初步掌握恙虫病血清流行病学规律。

Methods:Serum specimens of different time series after the onset of tsutsugamushi disease were collected from patients. Serum specimens were also collected from healthy population in epidemic area and non-epidemic area.

采集患者病后不同时期的血清标本和疫源地内及非疫源地内人群血清标本，用间接免疫荧光法检测恙虫病抗体。

The 383 bp fragment is specific to strains of Y.pestis from Marmota baibacina Spermophilus undulates Plague Focus of the Tianshan Mountains and these strains may be the ancestor of Y.pestis in China.

该383bp片段为天山山地灰旱獭、长尾黄鼠鼠疫自然疫源地的鼠疫菌所特有，此疫源地的菌株可能是我国较古老的鼠疫菌。

HFRS mixed focus of infection made up of non Apodemus type evolved into but Apodemus type and Rattus type merged each other.

混合型HFRS疫源地并不是由姬鼠型自然疫源地演变而成的，而是姬鼠型和家鼠型HFRS疫源地的重叠或重合而成。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐