Wasel M, Atia M M, Mohsen A, el-Sayed M, Zaki K
Abassia Serum and Vaccine Research Institute, Cairo, Egypt.
Arch Exp Veterinarmed. 1990;44(5):645-8.
Studies were conducted into effects of Rift Valley fever virus on oestrous and vaginal cytology in non-pregnant ewes. 6 pregnant and 8 non-pregnant local Barki ewes were subcutaneously inoculated with different doses of virus isolated from Sharkia Province. Observed were irregularities in the oestrous cycle (20-28 days inoculation) and anoestrum. The anoestrum smears included large non-cornified epithelial cells with large well stains centrally located nuclei together with a large number of bacteria. Abortion and retention of placenta occurred in pregnant ewes with prolonged puerperal heat up to 70 days. Inoculation of virus was followed by thermal response. Re-isolation of virus in BHK cells was possible from aborted foetuses and placenta.
对裂谷热病毒对未怀孕母羊发情和阴道细胞学的影响进行了研究。6只怀孕的和8只未怀孕的当地巴尔基母羊皮下接种了从谢克希亚省分离出的不同剂量病毒。观察到发情周期出现异常（接种后20 - 28天）以及出现乏情期。乏情期涂片包含大的非角质化上皮细胞，其细胞核大且位于中央、染色良好，同时还有大量细菌。怀孕母羊出现流产和胎盘滞留，产后发情延长至70天。接种病毒后出现热反应。从流产胎儿和胎盘中可以在BHK细胞中再次分离出病毒。
