| astrakhan fever rickettsiae: antigenic and genotypic analysis of isolates obtained from human and rhipicephalus pumilio ticks. | two spotted fever group rickettsia strains, a-108 and a-167, were isolated from the hemolymph of rhipicephalus pumilio ticks collected in the astrakhan region of russia, which is area endemic for astrakhan fever. these tick isolates were compared with a strain isolated from a patient suffering from astrakhan fever and with reference spotted fever group rickettsiae strains. new tick isolates and the human strain were identical in their serologic, antigenic, and genetic characteristics by several ... | 1994 | 7985764 |
| serologic response to rickettsial antigens in patients with astrakhan fever. | astrakhan fever is a new spotted fever group (sfg) rickettsiosis. sera of patients with astrakhan fever have been examined by microimmunofluorescence and western immunoblotting to determine the serologic responses to the astrakhan strain and to r. conorii m-1 strain and the israelian isolate of sfg rickettsiae. the serologic response to specific rickettsial agent and to israelian isolate has been found to be similar, but was different of that to r. conorii. immunoglobulin g (igg) and igm antibod ... | 1995 | 8549703 |
| rickettsial diseases in russia. | currently, several rickettsioses are officially being reported in the russian federation. these are epidemic typhus and brill-zinsser disease, both caused by rickettsia prowazekii which has a historic prevalence in russia. nowadays only single sporadic cases of r. prowazekii infection are reported. the last significant outbreak occurred in 1997 in a mental nursing home, where 29 cases were identified. registered morbidity of typhus in russia varies from 0 to 0.01 per thousand for the last decade ... | 2006 | 17114680 |