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충청지역에서 발생한 쭈쭈가무시병의 임상상, 원인균의 혈청형 및 혈청역학적 연구
김선영,김윤성,박장규,윤태영,강재승,송인숙,최명식,최인학,차창룡,이우곤,박종우,이증훈,장우현,유영해,윤광혁,송계용 대한감염학회 1989 감염 Vol.21 No.2
From September to december 1987, eighty-six cases of tsutsugamushi disease were diagnosed by indirect immunofluorecent test or by isolating the causative agent in Chungcheung area. Their clinical features and patterns of antibody response to R. tsutsugamushi were analyzed. For the indenfication of prevalent antigenic types of R. tsutsugamushi in Chungcheung area, twenty-seven strains isolated were tested by indirect immunofluorescent test. To assess the extent of exposure to R.tsutsugamushi of a general population in Korea, the prevalence of antibody was investigated in 6,572 sera obtained from the residents of Chungcheung area by indirect immunofluorescent test. The female patients slightly outnumbered the male patients. More cases (68%) were older than 40 years of age. The epidemic peaked in October. The mean incubation period estimated was about 8 days. The major clinical features were fever and chill, headache, rash, eschar, and lymphadenopathy. Increased serm transaminase was the most singificant laboratory findings. Abnormalities in the chest roentgenography were often observed. The antibody titer rose rapidly 5 days after the onset, reached its peak at 20 days (1:640), and then declined agradually until 7 months(1:20). The seroype of 23 out of the 27 isolates wase found to be karp, one was Gilliam, and 3 isolates could not be classified by using polyclonal mouse hyperimmune sera. The prevalence of antibody to R.tsutsugamushi in the residents of Chungcheung area was 4.8%. The prevalence of antibody was higher in the female than in the male. The prevalence was higher in the residents of age above 40 years than below 40 years, and was the lowest in the children less than 10 years of age. Of the 318 positive sera from normal residents, only 2 sera showed the titers higher than 1:80.