Doctorado en Ciencias Biomédicas, Universidad Veracruzana, Xalapa, Veracruz, México.
LADISER Inmunología y Biología Molecular, Facultad de Ciencias Químicas, Universidad Veracruzana, Orizaba, Veracruz, México.
Acta Parasitol. 2022 Sep;67(3):1136-1144. doi: 10.1007/s11686-022-00557-x. Epub 2022 May 10.
The aim of this study was to identify the risk factors associated with house infestation by Triatoma dimidiata as well as with Trypanosoma cruzi infection in humans and owned dogs in two rural communities from the municipality of Catemaco, Veracruz, Mexico.
One hundred and 16 human blood samples and 34 dog blood samples were collected. The presence of anti-T. cruzi antibodies was determined using four different ELISA assays. Moreover, reactive ELISA sera from humans and dogs were processed by indirect immunofluorescence (IFI) to confirm the presence of anti-T. cruzi antibodies.
Serologic tests for T. cruzi infection showed a prevalence of 5.1% (6/116) in humans and of 50% (17/34) in owned dogs.
The presence of animals (dogs, chickens and wild animals), as well as some characteristics of house construction were identified as risk factors for infestation and infection. Complementary studies must be carried out to allow a better understanding of the transmission dynamics in the state of Veracruz, Mexico, and the implementation of adequate control programs.
本研究旨在确定与特氏锥虫感染相关的风险因素，以及与墨西哥韦拉克鲁斯州卡塔马科市两个农村社区的人及家养犬的屋舍锥蝽感染相关的风险因素。
采集了 116 份人血样本和 34 份犬血样本。使用四种不同的 ELISA 检测试剂盒来确定是否存在抗 T. cruzi 抗体。此外，对来自人和犬的反应性 ELISA 血清进行间接免疫荧光（IFI）处理，以确认是否存在抗 T. cruzi 抗体。
对 T. cruzi 感染的血清学检测显示，人群中的感染率为 5.1%（6/116），家养犬的感染率为 50%（17/34）。
动物（狗、鸡和野生动物）的存在以及房屋结构的某些特征被确定为感染的风险因素。必须进行补充研究，以更好地了解墨西哥韦拉克鲁斯州的传播动态，并实施适当的控制计划。
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