Objective:

To determine the prevalence of Blastocystis spp. in children living in the city of Reynosa, Tamaulipas, Mexico.

Material y Method:

Cross-sectional study that included 238 stool samples from children aged 5 to 12 years from elementary schools in the city of Reynosa,

Tamaulipas, Mexico.

Results:

Of the total number of samples, 13.8% showed the presence of Blastocystis spp., being the most prevalent among the parasites found; the presence of Entamoeba histolytica/dispar, Giardia intestinalis and Enterobius vermicularis was also reported.

Conclusions:

The prevalence of Blastocystis in areas of Mexico is poorly known; however, studies in various parts of the world suggest an increase, so it is important

to determine the presence and its relationship as a human pathogen or opportunist.

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