排序方式: 共有6条查询结果,搜索用时 15 毫秒
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陕西省肾综合征出血热隐性感染调查周燕平,张家驹,田君喜,邢爱华,范根蔚,封怀义,姜克俭(指导)为了解本省肾综合征出血热(HFRS)隐性感染情况,在户县、长安县、周至县抽样调查5286人,滤纸片法采血,IFAT法测定HFRS抗体。结果:人群隐性感染率为... 相似文献
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观察两种HFRS灭活疫苗在陕西省高发病区接种后第2年的免疫效果。方法:于加强免疫前及免疫后14天、1年采集接种者静脉血,应用微量细胞病变法和荧光法检测中和抗体、IgG抗体,并观察流行病学防病效果。结果:鼠脑纯化灭活疫苗(Ⅰ型)加强免疫1年后,中和抗体阳性率为45%,GMT5.41,接种组无发病者,而对照组发病率为79.10/10万,保护率100%;沙鼠肾灭活疫苗(Ⅰ型)中和抗体阳性率40%,GMT50,接种组发病率6.02/10万,对照组发病率108.41/10万,保护率94.45%。两种疫苗均末发现免疫增强反应。 相似文献
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为查明小盾纤恙螨在传播流行性出血热(EHF)上的媒介意义,我们于1988年10~11月,在陕西EHF疫区捕鼠,取459份鼠肺用IFAT检测EHFV抗原,阳性26份,阳性率为5.7%,并从鼠体采集的小盾纤恙螨分离到EHFV6株。1989年10月,将捕自非疫区的黑线姬鼠28只置放于疫区草地上,所有的鼠均诱集到游离的小盾纤恙螨幼虫,并从鼠分离到EHFV3株。以上结果证明小盾纤恙螨能自然感染和叮刺传播EHFV,并提示有经卵传递EHFV的能力,表明小盾纤恙螨具有作为EHF传播媒介的条件。 相似文献
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小盾纤羔螨自然感染流行性出血热病毒的调查研究 总被引:7,自引:0,他引:7
Leptotrombidium (L.) scutellare was considered to be the suspected vector of epidemic haemorrhagic fever (EHF). In order to clarify the relationship between this mite and EHF, from Oct to Nov 1988 and Oct of 1989, the larvae of this mite were collected from rats in areas with constantly high incidence of EHF in Shanxi Province and larvae with only small quantity of meal were selected and for more than 15 days before isolation of EHFV. Six strains of virus were isolated. The viruses isolated were identified to be EHFV by serum test, immunofluorescent blocking test as well as neutralization test. The above results further demonstrate this mite can naturally be infected by EHFV and therefore serve as vector of EHF. 相似文献
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陕西省肾综合征出血热疫区分型研究张家驹,周燕平,田君喜,邢爱华,范根蔚,封怀义姜克俭(指导)为了解肾综合征出血热(HFRS)疫苗试区的疫区型别,以正确选用相关型别疫苗,于1994~1995年对本省病毒株型别、发病季节分布、本病患者血清抗体分型、鼠情监... 相似文献
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