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1 June 2012 Seroprevalence of Hantaviruses in Small Wild Mammals Trapped in South Korea from 2005 to 2010
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The seroprevalence of Hantaan virus (HTNV) in wild rodents in South Korea was analyzed. Wild rodents were trapped in 18 cities in eight provinces during 2005–2007 and on three islands and four mountains during 2008–2010. Sera were collected from 629 out of 933 trapped wild animals and examined for immunoglobulin G antibodies to HTNV using indirect immunofluorescence assays. Apodemus agrarius (80.1%) was the most frequently captured species at almost all trapping sites. The overall prevalence of HTNV antibodies was 0.26 (162/629). Seropositive individuals were more frequent in cities (32.2%, n=410) than on islands (14.0%, n=57) or mountains (13.6%, n= 162). HTNV antibody-positive rate was higher in the fall (29.6%, n=253) than in the spring (23.1%, n=376). A. agrarius had the highest prevalence of HTNV antibodies (26.9%, n=561) of all tested species. Considering all the individuals, the prevalence of HTNV antibodies was higher in males (29.2%, n=250) than in females (22.3%, n=305). Our results show that HTNV is widely distributed throughout South Korea, and that HTNV infection of wild rodents is affected by their habitat, species, sex, and season.

Mi Young Lim, Jungsang Ryou, Su Yeon Kim, E-Hyun Shin, Youn Jeong Yoo, Seok-Min Yun, Yoon Tae Noh, Myung Guk Han, and Young Ran Ju "Seroprevalence of Hantaviruses in Small Wild Mammals Trapped in South Korea from 2005 to 2010," Journal of Vector Ecology 37(1), 97-101, (1 June 2012).
Received: 24 August 2011; Accepted: 1 December 2011; Published: 1 June 2012

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