The pathogenicity of Entamoeba histolytica is indicated by -
Cultures are not used routinely but may on occasion prove positive in cases found negative by microscopy. Cultures permit the determination of zymodeme patterns for differentiation between pathogenic and nonpathogenic strains. TEXTBOOK OF MEDICAL PARASITOLOGY,CKJ PANIKER,6TH EDITION,PAGE NO 25
Zymodeme pattern
Size
Nuclear pattern
ELISA test
parasitology