疫源地

It indicates that there may have the nature infective spots of E.canis in the country.

表明我国极有可能存在该病的自然疫源地，有必要进行深入研究。

Marmot plague foci in the mode of transmission of human plague have direct contact and insect vector transmission in two ways.

旱獭鼠疫疫源地中人间鼠疫的传染途径有直接接触和媒介昆虫传播两种途径。

NPCR has high sensitivity and specificity. Hence.The PCR assay is a useful tool to investigate the natural epidemic foci of scrub typhus.

套式PCR具有很高的敏感性和特异性，是疫源地及现场流行病学调查的有效手段。

The results suggested that there exsit natural foci of spotted fever in Qiongzhong area of Hainan province.

该地区的优势鼠种为黄毛鼠、屋顶鼠、针毛鼠，带蜱率分别为15.91％（7／44）、30％（15／50）、36.36％（8／22）。结论：海南省琼中县存在斑点热自然疫源地。

ABSTRACT Since 1990s, an average of about 540 thousand person-times per year of transient population have come to river valley region, a torrid zone with sea level below 800 m, of Yuanjiang basin for development.

元江流域九十年代以来平均每年大约有54万人次流动人口到海拔800米以下的河谷地区进行热区开发，流动人口的年带虫发病率、血片阳性率、原虫率分别是当地居民的50倍、2.6倍、2.26倍，该地区已成为向两岸山区及省内外输出疟疾的疫源地。

Since 1990s, an average of about 540 thousand person-times per year of transient population have come to river valley region, a torrid zone with sea level below 800 m, of Yuanjiang basin for development. The annual parasite incidence, slide positivity rate and parasite rate of transient population were 50 times, 2.6 times and 2.26 times as that of local residents respectively.

元江流域九十年代以来平均每年大约有54万人次流动人口到海拔800米以下的河谷地区进行热区开发，流动人口的年带虫发病率、血片阳性率、原虫率分别是当地居民的50倍、2.6倍、2.26倍，该地区已成为向两岸山区及省内外输出疟疾的疫源地。

Since 1990s, an average of about 540 thousand person times per year of transient population have come to river valley region, a torrid zone with sea level below 800 m, of Yuanjiang basin for development The annual parasite incidence, slide positivity rate and parasite rate of transient population were 50 times, 2 6 times and 2 26 times as that of local residents respectively Therefore, the river valley region has become a focus in transmitting malaria to both side of mountainous areas a...

元江流域九十年代以来平均每年大约有 54万人次流动人口到海拔 80 0米以下的河谷地区进行热区开发，流动人口的年带虫发病率、血片阳性率、原虫率分别是当地居民的 50倍、2 。6倍、2 。2 6倍，该地区已成为向两岸山区及省内外输出疟疾的疫源地。

Objective In order to identify the types of natural foci of tsutsugamushi disease to provide basis for prevention, a series of studies were carried out in Fujian,Zhejiang and Jiangsu Provinces.

于明明 ，郭恒彬，吴光华目的为查明恙虫病的自然疫源地类型给预防工作提供依据，在福建、浙江、江苏三省进行了系列调查。

Objective To study the germicidal effect of disinfectant on vibrion cholerae of El Tor biotype in different water bodies and to set a guidelines for disinfection in the epidemic foci of cholera.

目的 研究消毒剂对不同水体中ElTor霍乱弧菌的杀灭作用，为霍乱疫源地的消毒提供指导。

Waterlog could enlarge the intensity of infection in epidemic areas.

洪涝灾害可使疫源地传染强度增大。

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