2) Kawamura A, Tanaka H, Tamura A: Tsutsugamushi disease. University of Tokyo Press, 1995.
3) Ohashi N, Tamura A, Sakurai H, Yamamoto S: Characterization of a new antigenic type, Kuroki, of Rickettsia tsutsugamushi isolated from a patient in Japan. J Clin Microbiol 1990; 28: 2111-3.
4) Yamamoto S, Kawabata N, Ooura K, Murata M, Minamishima Y: Antigenic types of Rickettsia tsutsugamushi isolated from patients with tsutsugamushi fever and their distribution in Miyazaki Prefecture. Kansenshogaku Zasshi 1989; 63: 109-17.