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Molecular and serologic survey of Orientia tsutsugamushi infection among field rodents in southern Cholla Province, Korea.
H J Song
H J Song
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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S Y Seong
S Y Seong
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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M S Huh
M S Huh
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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S G Park
S G Park
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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W J Jang
W J Jang
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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S H Kee
S H Kee
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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K H Kim
K H Kim
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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S C Kim
S C Kim
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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M S Choi
M S Choi
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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I S Kim
I S Kim
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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W H Chang
W H Chang
Microbiology Division, Health and Environment Institute of Chollanam-do, Kwangiu, Korea.
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Field rodents were collected from six areas in southern Cholla Province, Korea from October to December 1993. Twenty-eight (24%) of the 119 Apodemus agrarius were seropositive (> 1:10) for Orientia tsutsugamushi by the passive hemagglutination assay (PHA). Of the seropositive cases, 11 specimens had antibody titers greater than 1:80. No seropositive specimens were found among the eight Crocidura lasiura collected. On the other hand, the polymerase chain reaction (PCR) amplified about 520 basepairs of a gene encoding the 56-kD protein from the genomic DNA of 12 strains of O. tsutsugamushi tested. This target DNA sequence was amplified from the 11 (8.7%) blood specimens of A. agrarius, and one of the eight C. lasiura also showed evidence of O. tsutsugamushi infection by PCR. Only one of the PCR-positive samples was also PHA-positive. These results suggest that the PCR combined with a serologic assay more accurately detects the degree of infection of rodents with rickettsiae-causing scrub typhus in epidemiologic surveys.
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| Past two years | Past Year | Past 30 Days | |
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