We investigated the distribution of ixodid ticks in severe fever with thrombocytopenia syndrome (SFTS) case reported areas using flagging method from May to November 2014 in Korea. We collected 13,471 ixodid ticks with 2 genera and 3 species. Among them, Genus Haemaphysalis and Ixodes accounted for 99.9% (13,455) and 0.1% (16), respectively. Genus Haemaphysalis consisted of 2 species, H. longicornis (96.2%) and H. flava (3.7%). I. nipponensis was only collected in Genus Ixodes. H. longicornis was the dominant species (over 90%) in most study areas. Ixodid ticks were evenly distributed at various environmental sites, such as residences, hills, grassfields, fields, graves, copses, other sites. The further study on SFTSV infection in ixodid ticks will be needed.

• Bong Gu Song(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Jong Yul Roh(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Won Il Park(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Eun Hee Shin(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Seong Yoon Kim(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Kyu-sik Chang(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Wook-Gyo Lee(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• Young Ran Ju(Division of Medical Entomology, Korea National Institute of Health, KCDC)
• E-Hyun Shin(Division of Medical Entomology, Korea National Institute of Health, KCDC)