McCloskey R V
Del Med J. 1989 Jul;61(7):335-7.
Ehrlichia Canis, a canine rickettsia, produces an acute infection in humans characterized by thrombocytopenia, leukopenia, and anemia. Patients should be closely questioned and examined for tick bites. Rash is not prominent, leading to the interesting if somewhat inaccurate label of "spotless spotted fever." The diagnosis is made by clinical presentation, absence of positive Lyme disease or Rocky Mounted Spotted Fever (RMSF) serology, and positive E. canis titers. Tetracyclines are preferred treatment. Ehrlichiosis should be considered in the differential diagnosis of fevers of unknown origin, Lyme disease, idiopathic thrombocytopenia, and hypoplastic anemia.
犬埃立克体，一种犬类立克次体，可在人类中引发急性感染，其特征为血小板减少、白细胞减少和贫血。应对患者进行仔细询问并检查是否有蜱虫叮咬。皮疹不明显，这就产生了“无疹斑疹热”这一有趣但不太准确的称谓。诊断依据临床表现、莱姆病或落基山斑疹热（RMSF）血清学检查呈阴性以及犬埃立克体滴度呈阳性来做出。四环素是首选治疗药物。在不明原因发热、莱姆病、特发性血小板减少症和再生障碍性贫血的鉴别诊断中应考虑埃立克体病。
