[Microbiological studies on Rickettsia tsutsugamushi].
D000818:Animals; D001096:Arachnid Vectors / Q000382:microbiology; D006801:Humans; D007564:Japan; D008925:Mites / Q000382:microbiology; D012285:Orientia tsutsugamushi / Q000254:growth & development*; D012612:Scrub Typhus / Q000453:epidemiology / Q000382:microbiology* / Q000635:transmission