“…The vacuolar form was the most commonly detectable form followed by the granular form. These results are in agreement with Souppart et al, 2009 , Mehta et al, 2015 , Darabian et al, 2016 . Granular form persisted after MTZ drug testing because, as reported, MTZ induces apoptosis, where granular formation is a self-regulatory mechanism of Blastocystis during apoptosis to produce high number of viable cells ( Dhurga et al, 2016 ).…”