| [spotted fever group rickettsiosis in chiba prefecture]. | in chiba prefecture, the first patient of infection with spotted fever group rickettsia was found in 1987, thereafter nine patients were detected serologically by the end of 1990. patients were found in the villages of amatsukominato, katsuura and ootaki, which were located in southern part of chiba prefecture. the illness occurred from june to october. on the other hand, patients with rickettsia tsutsugamushi were seen from october to september. difference of prevalent seasons of these two type ... | 1992 | 1402081 |
| occurrence of rickettsiosis of spotted fever group in chiba prefecture of japan. | acute- and convalescent-phase sera were obtained from a patient with suspected tsutsugamushi disease in july 1987, in amatsukominato located in the southeastern area of chiba prefecture, and showed negative serologic reactions with rickettsia tsutsugamushi, while the convalescent-phase serum reacted positively with r. montana and a japanese isolate of spotted fever group rickettsia at igm and igg titers of 1:320 and 1:640, respectively, in the indirect immunofluorescence test. these findings sho ... | 1988 | 3241460 |