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Korean J Parasitol > Volume 29(1):1991 > Article

Original Article
Korean J Parasitol. 1991 Mar;29(1):87-92. English.
Published online Mar 20, 1994.  http://dx.doi.org/10.3347/kjp.1991.29.1.87
Copyright © 1991 by The Korean Society for Parasitology
Determination of the vector species of tsutsugamushi disease in Korea
H I Ree,I Y Lee and M K Cho*
Department of Parasitology, Yonsei University College of Medicine, Seoul 120-752, Korea.

In order to determine the vector species of tsutsugamushi disease in Korea, chiggers were individually dissected, and internal contents were tested for Rickettsia tsutsugamushi organisms by means of indirect FA test, and each exoskeleton was mounted on slide for identification. Among 4,142 chiggers collected from 48 Apodemus agrarius at nine different localities during the period of July-November, 1989, 990 chiggers of 10 species of Trombiculidae were dissected and tested. Rickettsiae were confirmed in two Leptotrombidium pallidum larvae out of 447 tested, giving 0.4% of the infection rate. The chiggers of the other species tested were found negative.


Fig. 1
Dissection of a chigger mite form preparing FA test slides and the chigger specimen.


Table 1
Detection of R. tsutsugamushi antigen from internal contents of the chigger mites, by means of IFA test in 1989

1. Asanuma K, et al. Jpn J Sanit Zool 1959;10:232–244.
2. Asanuma K, et al. Jpn J Med Sci Biol 1962;15:297–308.
3. Campbell RW, Domrow R. Rickettsioses in Australia: isolation of Rickettsia tsutsugamushi and R. australis from naturally infected arthropods. Trans R Soc Trop Med Hyg 1974;68(5):397–402.
4. Dohany AL, Shirai A, Robinson DM, Ram S, Huxsoll DL. Identification and antigenic typing of Rickettsia tsutsugamushi in naturally infected chiggers (Acarina: Trombiculidae) by direct immunofluorescence. Am J Trop Med Hyg 1978;27(6):1261–1264.
5. Jackson EB, et al. Am J Hyg 1957;66:309–320.
6. Kohls GM, et al. Am J Hyg 1945;41:374–396.
7. Philip CB, et al. Am J Trop Med 1946;26:229–242.
8. Ree HI. Korean J System Zool 1990;6:57–70.
9. Sasa M. Jap J Exp Med 1954;24:335–361.
10. Shirai A, Dohany AL, Ram S, Chiang GL, Huxsoll DL. Serological classification of Rickettsia tsutsugamushi organisms found in chiggers (Acarina: Trombiculidae) collected in Peninsular Malaysia. Trans R Soc Trop Med Hyg 1981;75(4):580–582.
11. Shirai A, Huxsoll DL, Dohany AL, Montrey RD, Werner RM, Gan E. Characterization of Rickettsia tsutsugamushi strains in two species of naturally infected, laboratory-reared chiggers. Am J Trop Med Hyg 1982;31(2):395–402.
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