Sacks B N
Department of Environmental Science, Policy, and Management, University of California, Berkeley 94720, USA.
J Wildl Dis. 1998 Apr;34(2):386-9. doi: 10.7589/0090-3558-34.2.386.
Thirty-seven subadult and adult coyotes (Canis latrans), collected August 1992 through December 1996 from a coastal foothill area in northern California (USA), were examined for adult heartworm (Dirofilaria immitis). During 1992 through 1993, at the end of a 6 yr drought, none of four coyotes examined were infected with heartworms. However, during 1994 through 1996, after the drought had ended, prevalences were 91% in 23 adult coyotes and 40% in 10 subadult coyotes. Heartworm intensity did not differ by sex of coyote, and averaged (+/- SE) 19.4 +/- 3.8 among adults; one subadult had > 238 heartworms. The prevalence and intensity of heartworm infection in coyotes reported here for 1994 through 1996 are the highest reported anywhere in the United States.
1992年8月至1996年12月期间，从美国加利福尼亚州北部沿海山麓地区收集了37只亚成年和成年郊狼（犬属），对其进行成年犬心丝虫（恶丝虫）检查。在1992年至1993年，即6年干旱结束时，检查的4只郊狼均未感染心丝虫。然而，在1994年至1996年干旱结束后，23只成年郊狼的心丝虫感染率为91%，10只亚成年郊狼的心丝虫感染率为40%。心丝虫感染强度在郊狼的性别上没有差异，成年郊狼的心丝虫平均感染强度（±标准误）为19.4±3.8；1只亚成年郊狼的心丝虫数量超过238条。这里报告的1994年至1996年郊狼心丝虫感染率和感染强度是美国各地报告中最高的。
