Previous episodes of intestinal amebiasis may produce a positive serology.
Serologic results should be used as an aid in diagnosis and should not be interpreted as diagnostic by themselves.
Reference values apply to all ages.
A positive result suggests current or previous infection with Entamoeba histolytica.
Since pathogenic and nonpathogenic species of Entamoeba cannot be differentiated microscopically, some authorities believe a positive serology indicates the presence of the pathogenic species (ie, E histolytica).