Volume 68, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


The causative agents of scrub and murine typhus are considered endemic to Indonesia. However, the presence of spotted fever group rickettsiae and ehrlichiae have not been previously described in this country. During an investigation of arthropod-borne diseases on Gag Island, located northwest of the island of New Guinea in eastern Indonesia, the prevalence of antibody to the etiologic agents of monocytic ehrlichiosis, spotted fever rickettsiosis, and scrub and murine typhus were determined. Analysis of 55 blood samples from residents of Gag Island showed serore-activity to antigen preparations of (7 of 48, 14.6%), two spotted fever group rickettsiae: (5 of 48, 10.4%) and (10 of 49, 20.4%), (5 of 53, 9.4%), and (1 of 48, 2.1% [by an indirect immunofluorescence assay] and 1 of 50, 2.0% [by an enzyme-linked immunosorbent assay]). These results show serologic evidence of infection with ehrlichiae and spotted fever group rickettsiae for the first time in Indonesia in a location where the prevalence of antibody to and was lower.


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  • Received : 30 Jul 2001
  • Accepted : 21 Nov 2002

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