Inhibition of Cowdria ruminantium infectious yield by interferons alpha and gamma in endothelial cells [0.03%]
干扰素α和γ抑制绵羊坏死性血管毒烧伤热病原体Cowdria ruminantium的增殖
P Totté,D Blankaert,P Zilimwabagabo et al.
P Totté et al.
We have shown before that there is a positive correlation between resistance of cattle against Cowdria infection and early IFN production. Our in vitro studies demonstrated an activity of rBoIFN alpha 2C and rBoIFN gamma against Cowdria in ...
Development and transmission of Cowdria ruminantium by Amblyomma males transferred from infected to susceptible sheep [0.03%]
感染牛链球菌的Amblyomma雄性蜱向易感羊的传播和发展
K M Kocan,R A Norval,P L Donovan
K M Kocan
Male Amblyomma sp. were tested as vectors of Cowdria ruminantium, causative agent of heartwater disease. The males were allowed to feed on sheep experimentally infected with C. ruminantium and then were transferred to susceptible sheep to t...
Cowdria ruminantium identified in Amblyomma gemma using a DNA probe pCS20 [0.03%]
应用DNA探针pCS20在Amblyomma gemma中鉴定出Cowdria ruminantium
F D Wesonga,S W Mukolwe,F Rurangirwa
F D Wesonga
Amblyomma gemma ticks were collected from wild animals on a 20,000 acre game ranch in a heartwater endemic area in Kenya, close to Nairobi. A. variegatum is the main vector of heartwater in Kenya. E.A. LEWIS, 1947, in a one sentence report ...
Seroconversion to Cowdria ruminantium of Malawi zebu calves, reared under different tick control strategies [0.03%]
不同控制蜱虫策略下的马拉维水牛犊对Cowdria ruminantium的血清转化反应
A W Soldan,T L Norman,S Masaka et al.
A W Soldan et al.
The seroconversion by indirect ELISA to Cowdria ruminantium over the first year of life of sixty-six Malawi zebu calves born into groups which were dipped 17 times per year was compared to seroconversion of 32 calves born into non-dipped gr...
Cloning and partial characterization of the Cr32 gene of Cowdria ruminantium [0.03%]
克隆并部分鉴定Cowdria ruminantium的Cr32基因
A H van Vliet,F Jongejan,M van Kleef et al.
A H van Vliet et al.
Cowdria organisms were purified by density gradient centrifugation. The DNA was used to construct expression libraries. The immunodominant Cr32 protein was purified and its N-terminal amino acid sequence was determined. The expression libra...
Isolation and characterization of antigenic proteins of Cowdria ruminantium [0.03%]
Cowdria ruminantium 抗原蛋白的分离和鉴定
M Van Kleef,A W Neitz,D T De Waal
M Van Kleef
Two antigenically conserved Cowdria ruminantium proteins, an immunodominant 31 kDa and a minor 27 kDa protein, were characterized. The 31 kDa and 27 kDa proteins are single polypeptide chains. The 31 kDa protein contains no glycoconjugates ...
Bovine and human endothelial cell growth on collagen microspheres and their infection with the rickettsia Cowdria ruminantium: prospects for cells and vaccine production [0.03%]
牛和人的内皮细胞在层粘连蛋白包被的胶原微载体中的生长及其感染Cowdria ruminantium立克次体的研究及细胞和疫苗生产的前景分析
P Totté,D Blankaert,T Marique et al.
P Totté et al.
We successfully cultivated the rickettsia Cowdria ruminantium, in bovine endothelial cell lines (Bovine Umbilical Endothelial Cells/BUEC and Bovine microvasculature Cells/BMC) and also in primary endothelial cells of bovine origin (Bovine A...
The immunodominant 32-kilodalton protein of Cowdria ruminantium is conserved within the genus Ehrlichia [0.03%]
牛呼吸道合胞病毒的免疫优势32千道尔顿蛋白在埃利希亚属中是保守的
F Jongejan,N de Vries,J Nieuwenhuijs et al.
F Jongejan et al.
Serological tests for cowdriosis are hampered by cross-reacting antibodies from animals suspected to be infected with Ehrlichia species. We have monitored infections with Ehrlichia bovis, E. ovina, E. canis and E. phagocytophila in experime...
The relationship between Cowdria and Ehrlichia: change in the behaviour of ehrlichial agents passaged through Amblyomma hebraeum [0.03%]
柯多里体与埃利希体的关系——经Amblyomma hebraeum传代的埃利希体行为方式的变化
J L Du Plessis
J L Du Plessis
Following an earlier report that an Ehrlichia-like agent isolated from an adult Hyalomma truncatum female became more pathogenic and elicited a disease in sheep indistinguishable from heartwater after having been passaged through Amblyomma ...
J L Du Plessis,J D Bezuidenhout,M S Brett et al.
J L Du Plessis et al.
Five serological tests, the indirect and competitive ELISA, the indirect fluorescent antibody (IFA) test with 2 different antigens and the Western blot technique were compared and applied to sera that were known to be either negative or pos...
Comparative Study
Revue d'elevage et de medecine veterinaire des pays tropicaux. 1993;46(1-2):123-9. DOI: 1993