Galavíz-Silva L, Arredondo Cantú J M
Laboratorio de Parasitología Dr. Eduardo Caballero y Caballero, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, México.
Bol Chil Parasitol. 1992 Jul-Dec;47(3-4):54-7.
Using xenodiagnosis, two (8.0%) of 25 woodrats Neotoma micropus were found infected with tripanosome parasite in Vaquerias, a village in Nuevo Leon State, Mexico. The triatomine species developing infective metacyclic trypanosomes at week 12th were Triatoma pallidipennis, T. infestans and T. gerstaeckeri. Experimental infections using infected dejections were successfully conducted on laboratory mice (CD1 strain) confirming the vertebrate cycle of Trypanosome cruzi. The biological characterization of T. cruzi strains was demonstrated based on: 1) Triatomine developmental cycle. 2) A vertebrate host parasitic period up to 25-33 post-infection days, and. 3) Typical morphology of bloodstream trypomastigotes and amastigotes from myocardial nest. This is the first report of T. cruzi biologically characterized in Nuevo Leon, as well as a new report of N. micropus, increasing the list of reservoir hosts in Mexico.
在墨西哥新莱昂州一个名为瓦凯里亚斯的村庄，通过异种诊断法在25只林鼠（墨西哥林鼠）中发现两例（8.0%）感染了锥虫寄生虫。在第12周产生感染性循环后期锥虫的锥蝽种类为苍白锥蝽、侵扰锥蝽和格氏锥蝽。利用感染粪便对实验室小鼠（CD1品系）成功进行了实验性感染，证实了克氏锥虫的脊椎动物传播周期。基于以下几点对克氏锥虫菌株进行了生物学特性鉴定：1）锥蝽发育周期；2）感染后25 - 33天的脊椎动物宿主寄生期；3）心肌巢中血液内锥鞭毛体和无鞭毛体的典型形态。这是新莱昂州首次对克氏锥虫进行生物学特性鉴定的报告，也是墨西哥林鼠的新报告，增加了墨西哥储存宿主的种类。
