However, within the large intestine microflora Clostridium spp. Is an essential and important anaerobic bacterium, within all possible associations, it would be possible that the true etiologic agent was Clostridium and not Blastocystis spp.?
Since there is a severe diarrhea associated with a large number of Oocyst shedding compared to low number with no symptoms , i think it is Blastomyces rather than clostridium