Abstract：
Baylisascaris procyonis, or raccoon roundworm, is an intestinal nematode parasite of raccoons (Procyon lotor) that is important to public and wildlife health. Historically, the parasite was uncommon in the southeastern US; however, the range of B. procyonis has expanded to include Florida, US. From 2010 to 2016, we opportunistically sampled 1,030 raccoons statewide. The overall prevalence was 3.7% (95% confidence interval=2.5-4.8%) of sampled individuals, and infection intensity ranged from 1 to 48 (mean±standard deviation 9.9±4.0). We found raccoon roundworm in 9/56 (16%) counties sampled, and the percent positive ranged from 1.1% to 13.3% of specimens collected per county. Including previously published data, B. procyonis was detected in 11 Florida counties. We used logistic regression to estimate the contribution of raccoon demographic variables and the presence of the endoparasite Macracanthorhynchus ingens to B. procyonis detection in Florida. Following the model selection process we found housing density, M. ingens presence, and urbanicity to be predictive of raccoon roundworm presence. We also found substantial among-county variation. Raccoon sex and age were not useful predictors. Public health officials, wildlife rehabilitators, wildlife managers, and others should consider any Florida raccoon to be potentially infected with B. procyonis, particularly in areas where housing density is high.
摘要：
BaylisascarisProcyonis,或者浣熊蛔虫，是浣熊（Procyonlotor）的肠道线虫寄生虫，对公众和野生动物健康很重要。历史上,这种寄生虫在美国东南部并不常见；然而，B.procyonis的范围已经扩大到包括佛罗里达州，US.从2010年到2016年，我们在全州范围内对1,030只浣熊进行了机会主义采样。总体患病率为3.7%（95%置信区间=2.5-4.8%），感染强度从1到48（平均值±标准偏差9.9±4.0）。我们在9/56（16％）县进行了采样，每个县收集的标本的阳性百分比为1.1%至13.3%。包括以前公布的数据，在佛罗里达州的11个县发现了B.procyonis。我们使用逻辑回归估计浣熊人口统计学变量和内寄生虫的存在对佛罗里达州B.procyonis检测的贡献。在模型选择过程中，我们发现了房屋密度，M.ingens存在，和城市化可以预测浣熊蛔虫的存在。我们还发现县间存在很大差异。浣熊的性别和年龄不是有用的预测因子。公共卫生官员,野生动物康复者,野生动物管理者,其他人应该认为佛罗里达浣熊可能感染了B.procyonis，特别是在住房密度高的地区。
