目的 摸清驻山东省部队营区及其周围恙螨宿主及其体表恙螨的种类、优势种群, 为预防恙虫病提供科学依据。方法 选取驻山东省部队营区及周围作为调查点, 收集啮齿动物耳壳和耳窝全部恙螨, 用Hoyer’s液封片后在显微镜下观察并进行分类鉴定。结果 于1990－2010年在驻山东省17个地(市)区的部队营区共捕获啮齿动物937只, 经鉴定分为2目, 其中啮齿目有3科5属9种, 食虫目仅1种;褐家鼠(55.60%)为优势种, 黑线姬鼠的带恙螨指数(15.90)最高, 带螨虫种类(9种)最多。收集并检出恙螨8917只, 经鉴定隶属7属16种, 脆弱瓦甲恙螨分布于所调查各营区且为优势螨种(37.24%), 纤恙螨属共检测出7种恙螨, 占全部恙螨种类的43.75%。结论 驻山东省部队营区及其周围恙螨宿主种类较多, 做好灭鼠工作是预防恙虫病的重要措施。

Objective To determine the chigger mite species (including dominant species) and their hosts within and around the military camps in Shandong province, China and to provide a scientific basis for prevention of tsutsugamushi disease. Methods All chigger mites were collected from the earlaps and auricular fossae of rodents within and around the military camps in Shandong province; mite specimens were made with Hoyer’s fluid and then identified under a microscope. Results A total of 937 rodents were captured within and around the military camps of the 17 prefecture?level cities in Shandong province during 1990-2010. These rodents belonged to 9 species, 5 genera, and 3 families of Rodentia and 1 species of Insectivora. Rattus norvegicus (55.60%) was the dominant species. Apodemus agrarius had the highest chigger index (15.90) and carried the most species of chigger mites (9 species). In total, 8917 chigger mites, which belonged to 10 species and 7 genera, were collected and identified. Walchia fragilis was the dominant species (37.24%) and found in all military camps. Seven species of chigger mites were identified from Leptotrombidium, and they accounted for 43.75% of all chigger mites. Conclusion There are many species of chigger mite hosts within and around the military camps in Shandong province, and deratization is an importance measure for prevention of tsutsugamushi disease.