PDF(Pubmed)
Abstract：
The global resurgence of bed bug infestations, exacerbated by increasing international travel, trade, and insecticide resistance, has significantly impacted Korea. This study identified the bed bug species and performed pyrethroid resistance genotyping of recently resurgent bed bugs in Korea. Thirty-one regional bed bug samples were collected from 5 administrative regions: Gyeonggi-do (n=14), Seoul (n=13), Busan (n=2), Jeonllanam-do (n=1), and Chungcheongbuk-do (n=1). The samples underwent morphological and molecular identification. Twenty-four regional samples (77.4%) were identified as the tropical bed bug, Cimex hemipterus, and the remaining 7 regional samples (22.6%) were identified as the common bed bug, Cimex lectularius. The C. hemipterus regional samples carried at least three mutations associated with knockdown resistance (kdr), including 2 super-kdr mutations. The 7 C. lectularius regional samples possessed at least one of the 3 kdr-related mutations associated with pyrethroid resistance. This study confirms that the prevalent bed bug species recently in Korea is C. hemipterus, replacing the previously endemic C. lectularius. Additionally, the rise in bed bug populations with pyrethroid resistance underscores the necessity of introducing alternative insecticides.
摘要：
臭虫感染的全球死灰复燃,随着国际旅行的增加，贸易,和杀虫剂抗性，严重影响了韩国。这项研究确定了臭虫种类，并对韩国最近复活的臭虫进行了拟除虫菊酯抗性基因分型。从5个行政区收集了31个地区性臭虫样本：京坪岛（n=14），首尔（n=13），釜山（n=2），Jeonllanam-do(n=1),和忠清北道(n=1)。样品经过形态学和分子鉴定。二十四个区域样本(77.4%)被确定为热带臭虫，Cimex半翅目，其余7个区域样本(22.6%)被确定为普通臭虫，Cimexlectularius.C.hemipterus区域样本携带至少三个与敲低抗性（kdr）相关的突变，包括2个super-kdr突变.7个C.lectularius区域样品具有与拟除虫菊酯抗性相关的3个kdr相关突变中的至少一个。这项研究证实，最近在韩国流行的臭虫物种是C.hemipterus，取代以前流行的C.lectularius。此外,具有拟除虫菊酯抗性的臭虫种群的增加强调了引入替代杀虫剂的必要性。
