Snyder D E, Fitzgerald P R
J Parasitol. 1985 Oct;71(5):596-8.
The gastrointestinal tracts of 310 steel-trapped or hunter shot Illinois raccoons (Procyon lotor) were collected in November and December 1979 and 1980 and examined for the presence of Baylisascaris procyonis (Nematoda) in order to determine the prevalence and intensity of this ascarid and to note any differences with respect to host age and sex. The raccoons were classified as either juveniles (animals less than 1 yr old) or adults. The prevalence for all the raccoons examined was 81.9% and is the highest reported in the United States when compared to other moderate to large samples. Juvenile raccoons had a significantly higher (P less than 0.0005) prevalence (93.5%) and mean intensity (62.4) than adults (55.3%; 11.8). Male raccoons had a significantly higher (P less than 0.025) prevalence (87.6%) than females (76.4%). Adult males had a significantly higher (P less than 0.05) prevalence (66.7%) than adult females (44.9%). In the other comparisons, no significant differences (P less than 0.05) in either prevalence or intensity were found. Since juveniles are more heavily infected than adults, they most likely pose a greater threat to other animals and humans as a potential cause of visceral larva migrans. It is advisable that all young raccoons kept as pets or in captivity be systematically and routinely treated with an appropriate anthelminthic to remove adult B. procyonis from the intestine.
1979年11月和12月以及1980年11月和12月，收集了310只被钢夹捕获或被猎人射杀的伊利诺伊州浣熊（北美浣熊）的胃肠道，检查其中是否存在浣熊贝蛔虫（线虫纲），以确定这种蛔虫的感染率和感染强度，并记录宿主年龄和性别的任何差异。浣熊被分为幼年（年龄小于1岁的动物）或成年。所有接受检查的浣熊的感染率为81.9%，与其他中等到大量样本相比，这是美国报道的最高感染率。幼年浣熊的感染率（93.5%）和平均感染强度（62.4）显著高于成年浣熊（55.3%；11.8）（P<0.0005）。雄性浣熊的感染率（87.6%）显著高于雌性浣熊（76.4%）（P<0.025）。成年雄性浣熊的感染率（66.7%）显著高于成年雌性浣熊（44.9%）（P<0.05）。在其他比较中，未发现感染率或感染强度有显著差异（P<0.05）。由于幼年浣熊比成年浣熊感染更严重，它们作为内脏幼虫移行的潜在原因，很可能对其他动物和人类构成更大威胁。建议对所有作为宠物饲养或圈养的幼年浣熊系统且常规地用适当的驱虫药进行治疗，以清除肠道内的成年浣熊贝蛔虫。
