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KMID : 0984720060380060389
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Infection and Chemotherapy
2006 Volume.38 No. 6 p.389 ~ p.393
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Association between Location of Eschar and Clothing in Scrub Typhus
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Kim Baek-Nam
Kwak Yee-Gyung
Moon Chi-Sook
Kim Eu-Suk
Park Sang-Won
Lee Chang-Seop
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Abstract
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Background: Wearing a long-sleeved shirt and tucking the pants legs into the socks is recommended to prevent scrub typhus. This study investigated associations between the location of eschar and the type of clothes and shoes to evaluate the efficacy of these protective measures.
Materials & Methods: One-hundred and fifty nine patients in whom scrub typhus was confirmed or suspected based on the typical clinical manifestations, presence of eschar, or positive results of serologic tests at 6 Korean hospitals from October to December 2005 were included in this study. We collected the information on the location of eschar, presumed exposure date to chiggers, and the clothes and shoes which they had worn.
Results: Serologic tests were positive in 99 patients. Eschars were observed in 142 patients and 6 of them exhibited more than 2 eschars. Eighty-two (60.3%) of 136 patients with a single eschar had an eschar on the lower half of the body. Of the 44 patients whose exposure date could be estimated, and who had only a single eschar, 5 of the 17 patients with eschars in the lower half of their bodies, and none of the 27 patients with eschars in the upper half of their bodies went barefoot or wore open footware (P=0.006). Only 4 patients tucked the pants into their socks, and an eschar was found in the lower half in one patient, and in the upper half of the body in the other 3 patients. Of 42 patients who wore long-sleeved shirts, eschars were found in their lower bodies in 16, and on their upper bodies in 26 (P=1.00).
Conclusion: When the feet were not protected properly with shoes, eschars were found more frequently on the lower half of the body than on the upper half. Wearing a long-sleeved shirt or tucking the pants legs into the socks was not found to be significantly correlated to the location of eschars. Further studies involving larger samples are necessary for the development of practical guidelines of protective measures to prevent scrub typhus.
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KEYWORD
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Orientia tsutsugamushi, Scrub Typhus, Protective clothing, Shoes, Eschar
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