Kim Heung-Chul, Yang Young-Cheol, Chong Sung-Tae, Ko Sung-Jin, Lee Sang-Eun, Klein Terry A, Chae Joon-Seok
5th Medical Detachment, 168 Multifunctional Medical Battalion, US Army MEDDAC-Korea, Unit #15247, APO AP 96205-5247.
J Wildl Dis. 2010 Jan;46(1):165-72. doi: 10.7589/0090-3558-46.1.165.
Fleas were collected from live-captured small mammals to identify potential flea-borne pathogens, seasonal prevalence of flea species, and host preference as part of the US military rodent-borne diseases surveillance program conducted at one US military installation and 10 military training sites, northern Gyeonggi Province, Republic of Korea. During 2003-04, 948 fleas (563 females and 385 males) were recovered from 2,742 small mammals (seven rodent and one insectivore species). Apodemus agrarius (striped field mouse) accounted for 88.9% (2,439/2,742) of the small mammals, followed by Crocidura lasiura (4.2%), Mus musculus (2.9%), Microtus fortis (2.2%), Myodes regulus (0.6%), Micromys minutus (0.5%), Tscherskia triton (0.5%), and Rattus norvegicus (0.3%). Small mammal infestation rates (number with fleas/number captured) ranged from 7.7% (M. minutus and T. triton) to 31.3% (M. regulus). Flea indices were highest for M. regulus (0.69/captured rodent), followed by C. lasiura (0.54), M. fortis (0.41), A. agrarius (0.34), and R. norvegicus (0.33). Overall, Ctenophthalmus congeneroides (51.3%) was more frequently collected, followed by Stenoponia sidimi (42.6%), Rhadinopsylla insolita (5.5%), Neopsylla bidentatiformis (0.4%), Rhadinopsylla concava (0.1%), and Doratopsylla coreana (0.1%). Ctenophthalmus congeneroides was more frequently collected from small mammals during the spring and summer, while S. sidimi was more frequently collected during the winter season. Rickettsia typhi, the causative agent of murine typhus, was detected in 3.2% of specimens (7/220 pools from 654 fleas; minimum field infection rate [number of positive pools/total number of fleas] was 1.1%).
作为美国在大韩民国京畿道北部一个军事设施和10个军事训练场地开展的军事啮齿动物传播疾病监测项目的一部分，从活体捕获的小型哺乳动物身上采集跳蚤，以确定潜在的跳蚤传播病原体、跳蚤种类的季节性流行情况以及宿主偏好。在2003 - 2004年期间，从2742只小型哺乳动物（7种啮齿动物和1种食虫动物）身上采集到948只跳蚤（563只雌性和385只雄性）。黑线姬鼠（条纹田鼠）占小型哺乳动物的88.9%（2439/2742），其次是麝鼩（4.2%）、小家鼠（2.9%）、东方田鼠（2.2%）、棕背䶄（0.6%）、巢鼠（0.5%）、大仓鼠（0.5%）和褐家鼠（0.3%）。小型哺乳动物的跳蚤感染率（有跳蚤的数量/捕获的数量）范围从7.7%（巢鼠和大仓鼠）到31.3%（棕背䶄）。跳蚤指数最高的是棕背䶄（0.69/捕获的啮齿动物），其次是麝鼩（0.54）、东方田鼠（0.41）、黑线姬鼠（0.34）和褐家鼠（0.33）。总体而言，常见栉眼蚤（51.3%）的采集频率更高，其次是西迪米狭蚤（42.6%）、奇异鬃蚤（5.5%）、二齿新蚤（0.4%）、凹缘鬃蚤（0.1%）和朝鲜多毛蚤（0.1%）。常见栉眼蚤在春季和夏季从小型哺乳动物身上的采集频率更高，而西迪米狭蚤在冬季的采集频率更高。在3.2%的标本中检测到地方性斑疹伤寒的病原体鼠型斑疹伤寒立克次体（7/220组来自654只跳蚤；最小野外感染率[阳性组数量/跳蚤总数]为1.1%）。
