Kocan A A, Breshears M, Cummings C, Panciera R J, Ewing S A, Barker R W
Department of Infectious Diseases and Physiology, College of Veterinary Medicine, Oklahoma State University, Stillwater 74078, USA.
J Wildl Dis. 1999 Jan;35(1):86-9. doi: 10.7589/0090-3558-35.1.86.
Nine of 16 free-ranging coyotes (Canis latrans) from central Oklahoma (USA) had naturally acquired infections of Hepatozoon americanum. Infections were confirmed by recognition of tissue stages closely resembling H. americanum in skeletal and cardiac muscle. At the time coyotes were collected they were infested with a variety of ticks, including adult Gulf Coast ticks (Amblyomma maculatum). We propose that the high prevalence of H. americanum in this small sample of free-ranging coyotes and the ability of these same animals to harbor adult populations of A. maculatum is an important component of the epizootiology of canine hepatozoonosis in North America.
来自美国俄克拉何马州中部的16只自由放养的郊狼（犬属）中有9只自然感染了美洲肝簇虫。通过在骨骼肌和心肌中识别出与美洲肝簇虫极为相似的组织阶段，感染得到了确认。在捕获郊狼时，它们身上寄生着各种蜱虫，包括成年的海湾沿岸蜱（美洲钝缘蜱）。我们认为，在这一小群自由放养的郊狼样本中美洲肝簇虫的高感染率，以及这些动物容纳成年美洲钝缘蜱种群的能力，是北美犬肝簇虫病流行病史的一个重要组成部分。
