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Geographical Distribution and Epidemiologic Factors of Chigger Mites on Apodemus agrarius during Autumn in Korea

Authors
 In Yong Lee  ;  Jae-Won Lim  ;  Jang Hoon Seo  ;  Heung Chul Kim  ;  Ku Jae Lee  ;  Tai-Soon Yong  ;  Won-Ja Lee  ;  Jae-Ran Yu  ;  Seobo Sim 
Citation
 KOREAN JOURNAL OF PARASITOLOGY, Vol.59(5) : 473-479, 2021-10 
Journal Title
KOREAN JOURNAL OF PARASITOLOGY
ISSN
 0023-4001 
Issue Date
2021-10
MeSH
Animals ; Epidemiologic Factors ; Mite Infestations / veterinary* ; Murinae / parasitology* ; Orientia tsutsugamushi ; Republic of Korea / epidemiology ; Scrub Typhus* / epidemiology ; Scrub Typhus* / veterinary ; Trombiculidae*
Keywords
Apodemus agrarius ; Korea ; Leptotrombidium ; epidemiology ; scrub typhus ; weather
Abstract
A nationwide survey of chigger mites causing scrub typhus and an investigation of epidemiologic factors for chigger mites was conducted at 16 localities in 8 provinces in Korea during autumn 2009, 2012, and 2013. A total of 233 Apodemus agrarius were captured, and all were infested with chigger mites. The chigger index was highest in Chungcheongbuk-do in 2009 (358.3) and 2012 (290.1) and Chungcheongnam-do in 2013 (294.4). The predominant chigger mite species was Leptotrombidium pallidum in the northern and central parts and L. scutellare in the southern and western parts, Korea. L. pallidum was not found in Jellanam-do and Gyeongsangnam-do and the distribution of L. scutellare had been expanded in the northern parts of Korea. The chigger index of L. pallidum was positively correlated with temperature and negatively correlated with humidity. The incidence of scrub typhus is dependent on L. scutellare index. These findings could be helpful to monitor the distribution of chigger mites and to develop a preventive measures for scrub typhus in Korea.
DOI
10.3347/kjp.2021.59.5.473
Appears in Collections:
1. College of Medicine (의과대학) > Others (기타) > 1. Journal Papers
Yonsei Authors
Yong, Tai Soon(용태순) ORCID logo https://orcid.org/0000-0002-3445-0769
Lee, In Yong(이인용)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/190757
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