Facultad de Medicina Veterinaria y Zootecnia, Universidad CES, Medellín, Colombia.
Facultad de Medicina Veterinaria y Zootecnia, Universidad CES, Medellín, Colombia; Laboratorio de Diagnóstico Veterinario, Instituto Colombiano de Medicina Tropical - ICMT, Sabaneta, Colombia.
Biomedica. 2024 Aug 29;44(3):416-424. doi: 10.7705/biomedica.7051.
Abdominal and neural angiostrongyliasis caused by Angiostrongylus costaricensis and A. cantonensis, respectively, are zoonotic diseases involving snails as intermediate hosts. Colombia has already reported human cases, and the increasing distribution of Lissachatina fulica and Cornu aspersum raises public health concerns due to the potential risk of disease transmission in areas where parasites and hosts coexist.
To identify the presence of Angiostrongylus spp. in snail species L. fulica and C. aspersum in Antioquia, Colombia.
This prospective cross-sectional study had a population of 5,855 L. fulica and C. aspersum snails captured in the ten towns of the Valle de Aburrá (Antioquia, Colombia), 169 samples were collected in 28 sampling points. Lung tissues of the collected snails were dissected and analyzed to detect Angiostrongylus spp. through molecular techniques.
Angiostrongylus spp. were identified in both L. fulica and C. aspersum. Angiostrongylus costaricensis was detected in 18 pooled prevalence of 30% (95% CI = 19.2-43.3), and Medellín was the municipality with the highest number of positive samples (33.3%). Seventy-two-point-two percent of the positive places reported the presence of rodents. None of the tests were positive for A. cantonensis.
Our findings provide important insights into the epidemiology and distribution of Angiostrongylus spp. in Antioquia, Colombia. The identification of these parasitic nematodes in L. fulica and C. aspersum highlights the potential role of these snails as intermediate hosts in the transmission of Angiostrongylus spp. infections in the Valle de Aburrá, with implications for human and veterinary health.
分别由库氏锥实螺（Angiostrongylus costaricensis）和陈氏豆螺（A. cantonensis）引起的腹型和神经血管旋毛虫病是涉及蜗牛作为中间宿主的人畜共患疾病。哥伦比亚已经报告了人类病例，由于寄生虫和宿主共存的地区存在疾病传播的潜在风险，福寿螺和非洲大蜗牛的分布不断扩大，引起了公众健康的关注。
在哥伦比亚安蒂奥基亚的福寿螺和非洲大蜗牛中鉴定出旋毛虫属的存在。
这项前瞻性的横断面研究的人群为 5855 只福寿螺和非洲大蜗牛，这些蜗牛是在安蒂奥基亚的 Valle de Aburrá 的十个城镇中捕获的，在 28 个采样点采集了 169 个样本。采集的蜗牛的肺组织被解剖并通过分子技术分析以检测旋毛虫属。
在福寿螺和非洲大蜗牛中均鉴定出旋毛虫属。在 18 个混合样本中检测到 30%的旋毛虫属流行率（95%CI=19.2-43.3），Medellín 是阳性样本数量最多的直辖市（33.3%）。72.2%的阳性地点报告了啮齿动物的存在。没有一个测试对 A. cantonensis 呈阳性。
我们的研究结果为安蒂奥基亚、哥伦比亚的旋毛虫属的流行病学和分布提供了重要的见解。在福寿螺和非洲大蜗牛中鉴定出这些寄生线虫，突出了这些蜗牛作为中间宿主在 Valle de Aburrá 传播旋毛虫属感染的潜在作用，对人类和兽医健康有影响。
