Serosurveillance of Scrub Typhus in Small Mammals Collected from Military Training Sites near the DMZ, Northern Gyeonggi-do, Korea, and Analysis of the Relative Abundance of Chiggers from Mammals Examined
- Authors
- Kim, Heung Chul; Lee, In Yong; Chong, Sung Tae; Richards, Allen L.; Gu, Se Hun; Song, Jin-Won; Lee, John S.; Klein, Terry A.
- Issue Date
- 9월-2010
- Publisher
- KOREAN SOC PARASITOLOGY, SEOUL NATL UNIV COLL MEDI
- Keywords
- Apodemus agrarius; Mus musculus; Crocidura lasiura; chigger; Leptotrombidium; scrub typhus
- Citation
- KOREAN JOURNAL OF PARASITOLOGY, v.48, no.3, pp.237 - 243
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- KOREAN JOURNAL OF PARASITOLOGY
- Volume
- 48
- Number
- 3
- Start Page
- 237
- End Page
- 243
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115724
- DOI
- 10.3347/kjp.2010.48.3.237
- ISSN
- 0023-4001
- Abstract
- Comprehensive quarterly serosurveillance on scrub typhus in small mammals collected from military training sites located near the Demilitarized Zone (DMZ), northern Gyeonggi-do (Province), ROK was conducted to determine the potential rodent-borne and associated ectoparasite disease risks to military personnel. A total of 1,196 rodents and insectivores representing 8 species, Apodemus agrarius (87.3%, n = 1,044), Mus musculus (5.4%, n = 65), Crocidura lasiura (3.3%, n = 40), Microtus fortis (2.6%, n = 31), Micromys minutus (0.3%, n = 4), Tscherskia triton (0.3%, n = 4), Rattus norvegicus (0.3%, n = 4), and Myodes regulus (0.3%, n = 4) were assayed for the presence of antibodies to Orientia tsutsugamushi. O. tsutsugamushi antibodies were detected in 6 of 8 species and seroprevalence determined; A. agrarius (45.6%), M. musculus (23.1%), M. fortis (48.4%), M. minutus (50.0%), T. triton (50.0%), and R. norvegicus (25.0%). A total of 31,184 chigger mites collected from 508 rodents and insectivores were slide-mounted and 10 species belonging to 4 genera were identified. Leptotrombidium pallidum (53.4%) was the most frequently collected, followed by L. palpale (15.7%), Neotrombicula tamiyai (14.3%), L. orientale (10.7%), L. zetum (3.1%), Walchia fragilis (2.1%), and L. gemiticulum (0.8%), while the remaining 3 species, L. subintermedium, N. gardellai, and Euschoengastia koreaensis were rarely observed (prevalence < 10%). In contrast to previous surveys, higher chigger indices of the primary scrub typhus vectors, L. pallidum (165.4), L. orientale (45.0), and L. palpale (21.4), were observed during the spring season.
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