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http://dx.doi.org/10.3347/kjp.2020.58.5.559

Epidemiological Characteristics of Rodents and Chiggers with Orientia Tsutsugamushi in the Republic of Korea  

Park, Jung Wook (Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
Yu, Dae Sung (Division of Animal Disease Control, Animal and Plant Quarantine Agency)
Lee, Gi Seong (Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
Seo, Jin Jong (Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
Chung, Jae Keun (Division of Infectious Disease Investigation, Health and Environment Research Institute of Gwangju)
Lee, Jae Il (Department of Veterinary Public Health, College of Veterinary Medicine, Chonnam National University)
Publication Information
Parasites, Hosts and Diseases / v.58, no.5, 2020 , pp. 559-564 More about this Journal
Abstract
A survey of rodents and chiggers associated with Orientia tsutsugamushi was conducted in a rural region of the Republic of Korea (Korea) between 2014 and 2018. Overall Apodemus agrarius 15.2% had the highest seropisitive for O. tsutsugamushi, followed by Myodes regulus 11.4%. Monthly risk factors using logistic regression analysis were not associated with O. tsutsugamushi infections in rodents. The overall prevalence rate of O. tsutsugamushi among chiggers was 0.3%. The chigger (Leptotrombidium scutellare) and monthly (October) risk factors were associated with O. tsutsugamushi human infections (P<0.05). Orientia tsutsugamushi infections are endemic in rodents in Korea and people, for example, soldiers who are active outdoors, must employ preventive measures, especially during October (P<0.05). When there are many reports of O. tsutsugamushi infections in Korea. The Boryong strain 85.7% (2/14) was the most common strain detected in chiggers, followed by the Shimokoshi 7.1% (1/14) and Karp 7.1% strains.
Keywords
Orientia tsutsugamushi; wild rodent; chigger; phylogenetic analysis;
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