EVIDENCE OF SPOTTED-FEVER RICKETTSIAL INFECTION IN JAPAN AS DEMONSTRATED BY THE INDIRECT IMMUNOPEROXIDASE TEST
EVIDENCE OF SPOTTED-FEVER RICKETTSIAL INFECTION IN JAPAN AS DEMONSTRATED BY THE INDIRECT IMMUNOPEROXIDASE TEST
复制标题
DOI:
10.1111/j.1348-0421.1985.tb00914.x
复制
发表时间:
1985-01-01
影响因子:
2.6
通讯作者:
SUTO, T
中科院分区:
文献类型:
--
作者:
SUTO, T
In contrast to the Tsutsugamushi disease (TD), infection with spotted fever group rickettsiae (SFGR) has not been documented in Japan. Mahara et al (1) and Uchida (7) have recently identified several cases of infection with some kind of SFGR by the Weil-Felix (WF) reaction and complement fixation (CF) test. To further investigate the above cases, we performed the indirect immuno-peroxidase (IP) test (6) using three prototype strains of Rickettsia tsulsugamushi (RT); two strains of SFG rickettsia, ie, a strain of tick borne rickettsia" Thai tick typhus, TT-118"(TTT) and" Siberian tick typhus," Rickettsia sibirica (STT), and one typhus group rickettsia," murine typhus," Rickettsia typhi (MT). The first patient (Case No. 2 in the table) was seen in May, 1984 in Tokushima Pref. Japan, and the second one (Case No. 3) was treated in June. The symptoms of the patients were similar to those of TD (1) such as high fever and erythematous lesions on the extremities and trunk which became hemorrhagic. The second patient had a typical" eschar (tache noire)" on her left arm. She was bitten by ticks about 3 days before the onset of the disease. In late June, 1984, the sera of the patients were sent to us from the Mahara Clinic for confirmation of TD. However, TD was ruled out on the day the sera arrived by means of the IP reaction (6). Some other rickettsial infection was sus pectedbecause the sera showed an increase in OX-2 titers in the Weil-Felix (WF) reaction (1, 7). In late July, another case (Case No. 4) with rather severe symptoms was seen at the same clinic, which also responded to doxycycline therapy. The serum of this case was also negative for antibody in the IP reaction against three prototype strains of RT, but positive for Proteus OX-2 by WF (1, 7). In September, 1984, CF antibodies against R. akari and also R. rickettsii were detected at the National Institute of Public Health, Tokyo, Japan, in sera of these three patients (1, 7).