Wixsom M J, Green S P, Corwin R M, Fritzell E K
Department of Veterinary Microbiology, College of Veterinary Medicine, University of Missouri, Columbia 65211.
J Wildl Dis. 1991 Jan;27(1):166-9. doi: 10.7589/0090-3558-27.1.166.
Wild canid carcasses were obtained during the 1986-1987 and 1987-1988 trapping seasons in Missouri. Hearts and lungs from 293 coyotes (Canis latrans), 85 red foxes (Vulpes vulpes) and 70 gray foxes (Urocyon cinereoargenteus) were examined for Dirofilaria immitis. Age of hosts was determined by radiographic and histologic techniques. Nineteen coyotes (7%) had from 1 to 100 D. immitis and five red foxes (6%) had from 1 to 7 D. immitis, whereas gray foxes had none. This study indicates that heartworm prevalence differs by wild canid species within the same area and during the same time period.
1986 - 1987年和1987 - 1988年密苏里州诱捕季节期间获取了野生犬科动物尸体。对293只郊狼（犬属）、85只赤狐（赤狐属）和70只灰狐（灰狐属）的心脏和肺进行了犬恶丝虫检查。通过放射学和组织学技术确定宿主年龄。19只郊狼（7%）体内有1至100条犬恶丝虫，5只赤狐（6%）体内有1至7条犬恶丝虫，而灰狐体内没有。本研究表明，同一地区、同一时期内，野生犬科动物物种之间的心丝虫患病率存在差异。
