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Monthly occurrence of vectors and reservoir rodents of scrub typhus in an endemic area of Jeollanam-do, Korea.
Korean J Parasitol. 2012 Dec; 50(4):327-31.KJ

Abstract

Monthly surveys were conducted to investigate the occurrence of chigger mites and seroprevalence of scrub typhus among small mammals in Jeollanam-do, the southwestern part of Korea, from November 2006 through October 2007. Fifty-eight small mammals, including 57 Apodemus agrarius (98.3%) and 1 Crocidura lasiura (1.7%), were captured, and a total of 4,675 chigger mites representing 4 genera and 8 species were collected from them. The chigger infestation rate among small mammals was 69.0%. The most predominant species in A. agrarius was Leptotrombidium scutellare (54.0%), followed by Leptotrombidium pallidum (39.4%), Leptotrombidium orientale (4.4%), Leptotrombidium palpale (1.1%), Neotrombicula tamiyai (0.6%), Eushoengastia koreaensis (0.3%), Neotrombicula gardellai (0.3%), and Cheladonta ikaoensis (<0.1%). The chigger index of A. agrarius was the highest in October (740.0), followed by November (242.0), September (134.6), March (98.3), February (38.2), January (35.3), December (34.5), April (30.8), and May (1.7). The average antibody positive rate of scrub typhus in wild rodents was 50.0%. The seropositive rates were high in October (100.0%) and November (83.3%), whereas those in other months were relatively low (28.6-57.1%). The chigger index of L. scutellare rapidly increased in September to form an acuminate peak in October, followed by a gradual decline. These results suggest that the outbreak of scrub typhus in the southwestern part of Korean peninsula is mostly due to L. scutellare.

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Authors+Show Affiliations

Lee SH
Department of Microbiology, Konkuk University School of Medicine, Chungju 380-701, Korea.
Lee YS
No affiliation info available
Lee IY
No affiliation info available
Lim JW
No affiliation info available
Shin HK
No affiliation info available
Yu JR
No affiliation info available
Sim S
No affiliation info available

MeSH

AnimalsAntibodies, BacterialAntibody SpecificityArachnid VectorsDisease ReservoirsHumansMurinaeOrientia tsutsugamushiPopulation DynamicsPublic Health SurveillanceRepublic of KoreaRodent DiseasesScrub TyphusSeasonsSeroepidemiologic StudiesShrewsSpecies SpecificityTrombiculiasisTrombiculidae

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23230330

Citation

Lee, Seung Hyun, et al. "Monthly Occurrence of Vectors and Reservoir Rodents of Scrub Typhus in an Endemic Area of Jeollanam-do, Korea." The Korean Journal of Parasitology, vol. 50, no. 4, 2012, pp. 327-31.
Lee SH, Lee YS, Lee IY, et al. Monthly occurrence of vectors and reservoir rodents of scrub typhus in an endemic area of Jeollanam-do, Korea. Korean J Parasitol. 2012;50(4):327-31.
Lee, S. H., Lee, Y. S., Lee, I. Y., Lim, J. W., Shin, H. K., Yu, J. R., & Sim, S. (2012). Monthly occurrence of vectors and reservoir rodents of scrub typhus in an endemic area of Jeollanam-do, Korea. The Korean Journal of Parasitology, 50(4), 327-31. https://doi.org/10.3347/kjp.2012.50.4.327
Lee SH, et al. Monthly Occurrence of Vectors and Reservoir Rodents of Scrub Typhus in an Endemic Area of Jeollanam-do, Korea. Korean J Parasitol. 2012;50(4):327-31. PubMed PMID: 23230330.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Monthly occurrence of vectors and reservoir rodents of scrub typhus in an endemic area of Jeollanam-do, Korea. AU - Lee,Seung Hyun, AU - Lee,Young-Sun, AU - Lee,In Yong, AU - Lim,Jae Won, AU - Shin,Hee-Kwan, AU - Yu,Jae-Ran, AU - Sim,Seobo, Y1 - 2012/11/26/ PY - 2012/07/26/received PY - 2012/09/19/revised PY - 2012/09/20/accepted PY - 2012/12/12/entrez PY - 2012/12/12/pubmed PY - 2015/4/14/medline KW - Apodemus agrarius KW - Leptotrombidium pallidum KW - Leptotrombidium scutellare KW - monthly occurrence KW - scrub typhus SP - 327 EP - 31 JF - The Korean journal of parasitology JO - Korean J Parasitol VL - 50 IS - 4 N2 - Monthly surveys were conducted to investigate the occurrence of chigger mites and seroprevalence of scrub typhus among small mammals in Jeollanam-do, the southwestern part of Korea, from November 2006 through October 2007. Fifty-eight small mammals, including 57 Apodemus agrarius (98.3%) and 1 Crocidura lasiura (1.7%), were captured, and a total of 4,675 chigger mites representing 4 genera and 8 species were collected from them. The chigger infestation rate among small mammals was 69.0%. The most predominant species in A. agrarius was Leptotrombidium scutellare (54.0%), followed by Leptotrombidium pallidum (39.4%), Leptotrombidium orientale (4.4%), Leptotrombidium palpale (1.1%), Neotrombicula tamiyai (0.6%), Eushoengastia koreaensis (0.3%), Neotrombicula gardellai (0.3%), and Cheladonta ikaoensis (<0.1%). The chigger index of A. agrarius was the highest in October (740.0), followed by November (242.0), September (134.6), March (98.3), February (38.2), January (35.3), December (34.5), April (30.8), and May (1.7). The average antibody positive rate of scrub typhus in wild rodents was 50.0%. The seropositive rates were high in October (100.0%) and November (83.3%), whereas those in other months were relatively low (28.6-57.1%). The chigger index of L. scutellare rapidly increased in September to form an acuminate peak in October, followed by a gradual decline. These results suggest that the outbreak of scrub typhus in the southwestern part of Korean peninsula is mostly due to L. scutellare. SN - 1738-0006 UR - https://www.unboundmedicine.com/medline/citation/23230330/Monthly_occurrence_of_vectors_and_reservoir_rodents_of_scrub_typhus_in_an_endemic_area_of_Jeollanam_do_Korea_ L2 - https://doi.org/10.3347/kjp.2012.50.4.327 DB - PRIME DP - Unbound Medicine ER -