Storandt S T, Kazacos K R
Department of Veterinary Pathobiology, Purdue University, West Lafayette, Indiana 47907.
J Parasitol. 1993 Apr;79(2):301-5.
Echinococcus multilocularis was identified in a coyote in Indiana in January 1990. Subsequently, 300 wild canids (red foxes, gray foxes, coyotes) were collected from Indiana, Ohio, Illinois, Michigan, and Kentucky and examined for this parasite. Of these, 41 (13.7%) were infected with E. multilocularis. Infected animals were from northern and central Indiana, northwestern Ohio, and east-central Illinois. Twenty-nine of 162 (17.9%) animals from northern and central Indiana were positive, versus 0 of 83 from southern Indiana. Infected animals from northern and central Indiana included 16 of 71 (22.5%) red foxes and 13 of 70 (18.6%) coyotes. In Ohio, 6 of 22 (27.3%) red foxes were infected, and in Illinois, 6 of 17 (35.3%) coyotes were positive. Mean intensity of infection for red foxes was 372 worms (range, 2-3, 640), and for coyotes, 6,579 worms (range, 1-52,000). These findings constitute new state and distribution records for E. multilocularis and a significant range extension for this parasite species in central North America.
1990年1月，在印第安纳州的一只郊狼体内发现了多房棘球绦虫。随后，从印第安纳州、俄亥俄州、伊利诺伊州、密歇根州和肯塔基州收集了300只野生犬科动物（赤狐、灰狐、郊狼），并对其进行了该寄生虫的检测。其中，41只（13.7%）感染了多房棘球绦虫。受感染的动物来自印第安纳州北部和中部、俄亥俄州西北部以及伊利诺伊州中东部。印第安纳州北部和中部的162只动物中有29只（17.9%）呈阳性，而印第安纳州南部的83只动物中无一例阳性。印第安纳州北部和中部受感染的动物包括71只赤狐中的16只（22.5%）和70只郊狼中的13只（18.6%）。在俄亥俄州，22只赤狐中有6只（27.3%）被感染，在伊利诺伊州，17只郊狼中有6只（35.3%）呈阳性。赤狐的平均感染强度为372条虫（范围为2 - 3640条），郊狼的平均感染强度为6579条虫（范围为1 - 52000条）。这些发现构成了多房棘球绦虫在新的州的分布记录，以及该寄生虫物种在北美中部显著的分布范围扩展。
