Abstract
The aim of this research is to assessment the effect of oxidase silver nanoparticles outside the body of the organism by exposure the samples diagnosed using the modified acid fast stain and microscopic and isolated examination using the floatation into three concentrations per nano-material is(01, 0.03 and 0.05). And then examined the samples at half an hour after exposure using trypan blue stain half an hour later and calculate living and dead oocytes using the (hemocytometer) and the percentage of oocystes at The concentration of (0.01) nano-silver is (46.57%) and the concentration (0.03) nano silver was the percentage of dead oocystes (43.93%), the lowest while the dead parasite oocsyts were (48.38%).
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