SciELO - Scientific Electronic Library Online

vol.25 issue4Ciclosporosis: una parasitosis emergente (I). Aspectos clínicos y epidemiológicosTiabendazol para el control de la infección por Strongyloides stercoralis en una zona hiperendémica en el Perú author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




  • Have no cited articlesCited by SciELO

Related links

  • Have no similar articlesSimilars in SciELO


Revista de Gastroenterología del Perú

Print version ISSN 1022-5129


BURSTEIN ALVA, Sonia. Ciclosporosis: una parasitosis emergente (II). Diagnóstico Microbiológico mediante una nueva técnica de coloración. Rev. gastroenterol. Perú [online]. 2005, vol.25, n.4, pp.336-340. ISSN 1022-5129.

Purpose: Describe a new staining technique for the diagnosis of Cyclospora infection through lab tests. A differential microscopic diagnosis between Cyclospora and Blastocystis hominis is conducted. Materials and Methods: The research was conducted by using fecal samples referred to a private lab in the city of Lima, Peru. A direct fresh assay was made by using a saline solution and Lugol’s solution. Very thin fecal smear were prepared, and a staining technique using gentian violet was applied. Results: Microphotography of Cyclospora cysts are shown with the fresh assay method and the new staining technique. Moreover the morphological and structural differences between Cyclospora and Blastocystis hominis were shown: the latter is larger, shows poor staining, and has vacuoles. Conclusions: The routine use of this technique is recommended for all fecal tests due to its simplicity and low cost, and because it allows a quick diagnosis of this type of infection that has a high prevalence in our country so it may be treated prematurely and specifically.

Keywords : Cyclospora; Staining; Blastocystis hominis; Lima, Peru.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )