Huang Xiao-Dan, Cheng Peng, Zhao Yu-Qiang, Li Wen-Juan, Zhao Jiu-Xu, Liu Hong-Mei, Kou Jing-Xuan, Gong Mao-Qing
Shandong Academy of Medicine Sciences, Shandong Institute of Parasitic Diseases, Jining, Shandong Province 272033, People's Republic of China.
Institute of Forensic Medicine and Laboratory Medicine, Jining Medical University, Jining, Shandong Province 272067, People's Republic of China.
Korean J Parasitol. 2017 Oct;55(5):555-559. doi: 10.3347/kjp.2017.55.5.555. Epub 2017 Oct 31.
Chigger mites are parasites of rodents and other vertebrates, invertebrates, and other arthropods, and are the only vectors of scrub typhus, in addition to other zoonoses. Therefore, investigating their distribution, diversity, and seasonal abundance is important for public health. Rodent surveillance was conducted at 6 districts in Shandong Province, northern China (114-112°E, 34-38°N), from January to December 2011. Overall, 225/286 (78.7%) rodents captured were infested with chigger mites. A total of 451 chigger mites were identified as belonging to 5 most commonly collected species and 3 genera in 1 family. Leptotrombidium scutellare and Leptotrombidium intermedia were the most commonly collected chigger mites. L. scutellare (66.2%, 36.7%, and 49.0%) was the most frequently collected chigger mite from Apodemus agrarius, Rattus norvegicus, and Microtus fortis, respectively, whereas L. intermedia (61.5% and 63.2%) was the most frequently collected chigger mite from Cricetulus triton and Mus musculus, respectively. This study demonstrated a relatively high prevalence of chigger mites that varied seasonally in Shandong Province, China.
恙螨是啮齿动物以及其他脊椎动物、无脊椎动物和其他节肢动物的寄生虫，是恙虫病东方体病及其他动物源性疾病的唯一传播媒介。因此，调查它们的分布、多样性和季节丰度对公共卫生很重要。2011年1月至12月，在中国北方山东省的6个地区（东经114 - 112°，北纬34 - 38°）开展了啮齿动物监测。总体而言，捕获的286只啮齿动物中有225只（78.7%）感染了恙螨。共鉴定出451只恙螨，分属于1科3属的5种最常见采集种类。小板纤恙螨和居中纤恙螨是最常采集到的恙螨。小板纤恙螨分别是从黑线姬鼠、褐家鼠和东方田鼠中最常采集到的恙螨（分别为66.2%、36.7%和49.0%），而居中纤恙螨分别是从大仓鼠和小家鼠中最常采集到的恙螨（分别为61.5%和63.2%）。本研究表明，中国山东省恙螨的感染率相对较高，且存在季节性变化。
