检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]上海第一医学院流行病学教研组 [2]安徽省卫生防疫站 [3]吉林省卫生防疫站
出 处:《上海医科大学学报》1980年第3期161-166,共6页Journal of Fudan University(Medical Science)
摘 要:一、概况1961年秋冬,安徽省颍上县发生流行性出血热(肾型)。在62万人口中发现1,314名病例,全年发病率达2.11‰。疫情之重,范围之广,在医学文献中尚未见报道。颍上县临近淮河,病例集中在沿淮河的洼地。A serious epidemic of hemorrhagic fever with renal syndrome occurred in In-shan County of Anhui Province in 1961.The incidence was most prevalent in Swampy areas,the lower the land,the higher the incidence.Hank correlation test of incidence rate with the altitude of terrain among 24 productive brigades showed a negative significant correlation(P<0.001).Of the trapped rodents,90%were Apodevrws agra-rius,the density of trap-night being 12%.While Trombiculid mites were rarely observed on rodents,the average index of gamasoid mites on rodents was 6.1.The percentages of Hemolaelaps glasgowi,Laelaps pavlovskyi and Eulaelaps stabularis were 29.8%,58.9%and 6.1%respectively on the rodents and 69.7%,7.0%and 19.9%in their holes.The density of Ap.agragrius and index of gamasoid mites seemed higher in the swampy areas.The annual incidence of the disease rose with an increase of density of Ap.agrarians and fell with a decrease of it(r,=0.9286,n=6,P<0.05).However,the density of Ap.agirarius depended on the amount of rainfall.In the years with little rainfall,when the swampy areas were drained and a good harvest was gathered in,Ap.Agrarius increased and epidemic of the disease occurred.Before liberation,these swampy areas were flooded almost every year.Since 1968,the Swampy areas have to a great extent been cultivated and as there was little rainfall in 1961,the beat harvests were gathered in that year,and a serious epidemic occurred.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28