Abstract

ALARCON, Ruth Semira Rodriguez; AMATO NETO, Vicente; GAKIYA, Erika  and  BEZERRA, Rita Cristina. Observations on Blastocystis hominis and Cyclospora cayetanensis in routine parasitological examinations. Rev. Soc. Bras. Med. Trop. [online]. 2007, vol.40, n.2, pp. 253-255. ISSN 0037-8682.  http://dx.doi.org/10.1590/S0037-86822007000200024.

We report some observations made from routine parasitological examinations on feces. The methods of Faust et al. and of spontaneous sedimentation in water are not enough to identify Blastocystis hominis. Significant percentage presence of this protozoan was found, especially when staining with iron hematoxylin was performed. Cyclospora cayetanensis was found in 0.7% of the cases, which suggests that this parasite should also routinely be investigated by appropriate techniques.

Keywords : Blastocystis hominis; Cyclospora cayetanensis; Sensitivity of parasitological examination of feces.