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Volume 12, Number 2—February 2006

Research

Scrub Typhus, Republic of Palau

Linda J. Demma*Comments to Author , Jennifer H. McQuiston*, William L. Nicholson*, Staci M. Murphy*, Pearl Marumoto†, J. Maireng Sengebau-Kingzio†, Stevenson Kuartei†, A. Mark Durand‡, and David L. Swerdlow*
Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA; †Ministry of Health, Koror, Republic of Palau; ‡Department of Health Services, Colonia, Federated States of Micronesia

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Table 2

Results of Orientia tsutsugamushi IFA serologic testing of Palau residents, 2003*

SWI,
n = 59 (%) Echang,
n = 54 (%) Other Koror hamlets,
n = 99 (%)
No. IgG >1:64 50 (84.7) 44 (82) 7 (7.1)
No. IgG >1:512 and IgM >1:64 32 (54) 22 (41) 2 (2)
Geometric mean IgG titer 996 740 102
Median IgG titer (range) 1:1,024 (1:32–1:32,768) 1:1,024 (1:16–1:65,536) 1:64 (1:16–1:512)

*IFA, indirect immunofluorescence assay; SWI, southwest islands; Ig, immunoglobulin.

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