Awosanya Emmanuel Jolaoluwa, Olagbaju Adeola, Peruzzu Angela, Masu Gabriella, Masala Giovanna, Bonelli Piero
Department of Veterinary Public Health and Preventive Medicine, University of Ibadan, Ibadan 200005, Nigeria.
National Reference Laboratory for Cystic Echinococcosis (CeNRE), WOAH Reference Laboratory for Echinococcosis, Istituto Zooprofilattico Sperimentale della Sardegna (IZS), Via Vienna 2, 07100 Sassari, Italy.
Vet Sci. 2022 Dec 7;9(12):679. doi: 10.3390/vetsci9120679.
Environmental contamination with parasite eggs poses a serious risk to public health. This study aimed to assess the presence of taeniid eggs and, in particular, E. granulosus s.l., in environmental samples in the city of Ibadan, South West Nigeria. To this purpose, soil (n = 200), fecal (n = 200) and water samples (n = 50) were examined by microscopic observation and the multiplex PCR method. The influence of specific environmental factors on E. granulosus s.l. egg dispersion was also evaluated. Taeniid eggs were microscopically found in 11.5%, 25.5% and 8.0% of soil, fecal and water samples, respectively. PCR analyses evidenced the presence of E. granulosus s.l. in 8.0%, 24.0% and 2.0% of soil, fecal and water samples, respectively. The proximity to slaughterhouses, the level of urbanisation and the local government area of belonging did not seem to affect E. granulosus s.l. egg dissemination patterns. Our results have clearly demonstrated that both urban and semi-urban areas of the city of Ibadan in Nigeria are highly contaminated by taeniid eggs and we recommend the adoption of appropriate measures to control E. granulosus s.l.
寄生虫卵造成的环境污染对公众健康构成严重风险。本研究旨在评估尼日利亚西南部伊巴丹市环境样本中带绦虫卵，特别是细粒棘球绦虫复合种（E. granulosus s.l.）的存在情况。为此，通过显微镜观察和多重聚合酶链反应（PCR）方法对土壤样本（n = 200）、粪便样本（n = 200）和水样（n = 50）进行了检测。还评估了特定环境因素对细粒棘球绦虫复合种虫卵散布的影响。在土壤样本、粪便样本和水样中，显微镜检查分别发现带绦虫卵的比例为11.5%、25.5%和8.0%。PCR分析表明，在土壤样本、粪便样本和水样中，细粒棘球绦虫复合种的存在比例分别为8.0%、24.0%和2.0%。靠近屠宰场、城市化水平以及所属的地方政府区域似乎并未影响细粒棘球绦虫复合种虫卵的传播模式。我们的结果清楚地表明，尼日利亚伊巴丹市的城市和半城市地区均受到带绦虫卵的高度污染，我们建议采取适当措施来控制细粒棘球绦虫复合种。
