Division of Communicable Disease Control, Center for Infectious Diseases, California Department of Public Health, Sacramento, CA 95899-7377, USA.
Zoonoses Public Health. 2012 Feb;59(1):4-7. doi: 10.1111/j.1863-2378.2011.01414.x. Epub 2011 May 20.
In response to an outbreak of Rocky Mountain spotted fever (RMSF) in Baja California in early 2009, dogs at two shelters in neighbouring Imperial County, California, were evaluated for ectoparasites. Brown dog ticks (Rhipicephalus sanguineus), a recognized vector for RMSF, were found on 35 (30%) of 116 dogs but all ticks tested negative for Rickettsia rickettsii by PCR.
针对 2009 年初在加利福尼亚州下加利福尼亚州爆发的落矶山斑点热（RMSF），加利福尼亚州邻近的帝国县的两个收容所对狗进行了寄生虫评估。在 116 只狗中，有 35 只（30％）发现了棕色犬蜱（Rhipicephalus sanguineus），这是 RMSF 的公认媒介，但所有蜱均通过 PCR 检测出阴性。
