Korean J Parasitol.
2021 Jun;59(3):319-324. 10.3347/kjp.2021.59.3.319.
Monitoring Chigger Mites for Orientia tsutsugamushi in Field Small Mammals in Hwaseong-si, Gyeonggi-do, Korea, 2019-2020
- Affiliations
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- 1Department of Biotechnology, College of Biomedical and Health Science, Konkuk University, Chungju 27478, Korea
- 2Infectious Diseases Investigation Division, Jeonnam Institute of Public Health and Environment, Muan 58568, Korea
- 3Department of Parasitology and Tropical Medicine & Global Resource Bank of Parasitic Protozoa Pathogens, Inha University School of Medicine, Incheon 22212, Korea
- 4Department of Life Sciences, Incheon National University, Incheon 22012, Korea
- 5Convergence Research Center for Insect Vectors, Incheon National University, Incheon 22012, Korea
- 6Department of Medical Environmental Biology, Chung-Ang University College of Medicine, Seoul 06974, Korea
- KMID: 2517064
- DOI: http://doi.org/10.3347/kjp.2021.59.3.319
Abstract
- Incidence of tsutsugamushi disease (scrub typhus) caused by Orientia tsutsugamushi, is steadily increasing. It is a mite-borne disease transmitted by chigger mites. In this study, the chigger mites were collected from field small mammals in Hwaseong-si (city), Gyeonggi-do (province), Korea, 2019 and 2020. The field small mammals captured were 56 Apodemus agrarius (94.9%) and 3 Crocidura lasiura (5.1%). A total of 7,531 chigger mites were collected from the captured small mammals. Using PCR test, 153 chigger mite pools were examined and 17 pools were reported positive for O. tsutsugamushi. The O. tsutsugamushi were identified to 5 strains; Jecheon strain was most prevalent, followed by Boryong strain. The other strains were OI011, Taguchi, and Shimokoshi. Collectively, these results provide essential regional information on mite-borne tsutsugamushi disease in the Hwaseong-si, and further contribute to bring awareness and rapid diagnosis for the tsutsugamushi disease.
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