Sommerfelt I E, Cardillo N, López C, Ribicich M, Gallo C, Franco A
Cátedra de Veterinaria en Salud Pública, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Av. Chorroarín 280, 1427 Buenos Aires, Argentina.
Vet Parasitol. 2006 Sep 10;140(3-4):296-301. doi: 10.1016/j.vetpar.2006.03.022. Epub 2006 May 2.
Toxocarosis is a worldwide parasitic infection that affects both cats and dogs. Toxocara cati (Schrank, 1788) syn. Toxocara mystax (Zeder, 1800) prevalence was studied in faeces from stray cats collected from the open spaces of public institutions of Buenos Aires city, both building and surrounding open spaces are fenced off. Of the 465 samples obtained from March to June of 2005, 58.3% were found to have parasite eggs. The following parasites were identified from the 271 positive samples: T. cati (61.2%), Cystoisospora spp. (20.3%), Trichuris spp. (17.0%), Toxascaris leonina (15.1%), Ancylostoma spp. (14%) and Aelurostrongylus abstrusus (2.6%). T. cati prevalence was 35.7% (95% confidence interval: 31.2-40.1), with a 42.2% single isolations. The most frequent combination was T. cati and Cystoisospora spp. (9%). More than half the areas studied showed over 40% prevalence. Seventy-one percent of the collected samples were fresh with a variable moist consistency and 29% were older with a dry consistency. A statistically significant association was found between sample consistency and presence of parasites (chi2 = 10.81; p = 0.001) as also between sample consistency and presence of T. cati (chi2 = 11.27; p = 0.0007). Moist consistencies were significantly different from the rest: consistency (wet or dry) versus parasites (z = 1.95; p = 0.02) (95% confidence interval: 0.004-0.203); consistency (wet or dry) versus T. cati (z = 3.25; p = 0.0006) (95% confidence interval: 0.075-0.254). The cat population that inhabits these public green spaces contaminates the environment, thus transforming them into dangerous spaces with a variable rate for the human population that spends time in these places.
弓首蛔虫病是一种影响猫和狗的全球性寄生虫感染。对从布宜诺斯艾利斯市公共机构开放空间收集的流浪猫粪便中的猫弓首蛔虫（Schrank，1788年）同物异名猫鼻弓首蛔虫（Zeder，1800年）的感染率进行了研究，这些建筑及其周围的开放空间都有围栏。在2005年3月至6月获得的465份样本中，发现58.3%的样本含有寄生虫卵。从271份阳性样本中鉴定出以下寄生虫：猫弓首蛔虫（61.2%）、等孢球虫属（20.3%）、鞭虫属（17.0%）、狮弓蛔虫（15.1%）、钩口线虫属（14%）和猫圆线虫（2.6%）。猫弓首蛔虫的感染率为35.7%（95%置信区间：31.2 - 40.1），单一感染率为42.2%。最常见的组合是猫弓首蛔虫和等孢球虫属（9%）。超过一半的研究区域感染率超过40%。71%的收集样本新鲜，质地湿润且有变化，29%的样本较陈旧，质地干燥。在样本质地与寄生虫存在之间发现了统计学上的显著关联（卡方 = 10.81；p = 0.001），在样本质地与猫弓首蛔虫存在之间也发现了显著关联（卡方 = 11.27；p = 0.0007）。湿润质地与其他质地有显著差异：质地（湿或干）与寄生虫（z = 1.95；p = 0.02）（95%置信区间：0.004 - 0.203）；质地（湿或干）与猫弓首蛔虫（z = 3.25；p = 0.0006）（95%置信区间：0.075 - 0.254）。栖息在这些公共绿地的猫群污染了环境，从而将它们变成对在这些地方活动的人群有不同感染率的危险区域。
