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作者于1990年2～6月,对广州实验大白鼠及其接触者进行了EHF感染调查。在25个单位采集了实验大白鼠423只,EHFV抗原阳性率11.8%(50/423),抗体阳性率12.5%(58/463),总感染率12.0%(59/491)。11份EHFV抗原阳性实验大白鼠肺组织,有1份分离出EHFV。在大白鼠饲养室周围捕捉褐家鼠9只,EHFV感染率22.2%(2/9)。在21个单位采集实验大自鼠接触者血清标本89份。EHFV抗体阳性率19.1%(17/89),发病率6.7%(6/17)。其中实验室人员感染率为14.6%(7/48),发病率为8.3%(4/48);饲养员感染率为24.4%(7/48),发病率为4.8%(2/41)。从3份病人血清中1份分离到EHFV。
The author from February to June 1990, Guangzhou experimental rats and their contacts were investigated for EHF infection. 423 experimental rats were collected in 25 units. The positive rate of EHFV antigen was 11.8% (50/423). The positive rate of antibody was 12.5% (58/463). The total infection rate was 12.0% (59/491). Eleven EHFV antigens were positive in experimental rat lung tissue, and one isolate isolated EHFV. Nine Rattus norvegicus were caught around the feeding room of rats, and the infection rate of EHFV was 22.2% (2/9). In 21 units collected from experimental mice since 89 samples of serum. The positive rate of EHFV antibody was 19.1% (17/89), the incidence was 6.7% (6/17). Among them, laboratory infection rate was 14.6% (7/48) and the incidence rate was 8.3% (4/48). The infection rate of breeders was 24.4% (7/48) and the incidence rate was 4.8% (2/41). EHFV was isolated from 1 of 3 patient sera.