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Monthly Occurrence of Vectors and Reservoir Rodents of Scrub Typhus in an Endemic Area of Jeollanam-do, Korea
The Korean Journal of Parasitology ; : 327-331, 2012.
Artigo em Inglês | WPRIM | ID: wpr-45624
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.
Assuntos

Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Vetores Aracnídeos / Orientia tsutsugamushi / Doenças dos Roedores / Estações do Ano / Musaranhos / Especificidade da Espécie / Trombiculíase / Trombiculidae / Reservatórios de Doenças / Tifo por Ácaros Limite: Animais / Humanos País/Região como assunto: Ásia Idioma: Inglês Revista: The Korean Journal of Parasitology Ano de publicação: 2012 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Vetores Aracnídeos / Orientia tsutsugamushi / Doenças dos Roedores / Estações do Ano / Musaranhos / Especificidade da Espécie / Trombiculíase / Trombiculidae / Reservatórios de Doenças / Tifo por Ácaros Limite: Animais / Humanos País/Região como assunto: Ásia Idioma: Inglês Revista: The Korean Journal of Parasitology Ano de publicação: 2012 Tipo de documento: Artigo