What is the Difference Between Entamoeba Histolytica and Entamoeba Dispar?

Entamoeba histolytica and Entamoeba dispar are two morphologically identical species of amoebae that can be found in human feces. However, they have distinct differences in terms of their pathogenicity and the diagnostic methods used to identify them.

Entamoeba histolytica is a pathogenic species that has the potential to cause dysentery and extraintestinal disease, while Entamoeba dispar is considered to be a harmless commensal. It is essential to differentiate between these two species for proper treatment and public health decision-making.

Microscopic examination of E. histolytica and E. dispar cysts and trophozoites cannot be used to morphologically differentiate between the two species. However, molecular diagnostic techniques, such as PCR and enzyme-linked immunosorbent assays (ELISAs), have been developed to differentiate E. histolytica from E. dispar. These methods are more sensitive and specific than traditional microscopic examination and have been used to estimate the relative proportions of each species in various settings.

In summary, the main differences between Entamoeba histolytica and Entamoeba dispar are their pathogenicity and the diagnostic methods used to identify them. E. histolytica is pathogenic and associated with dysentery and extraintestinal disease, while E. dispar is harmless and nonpathogenic. Molecular diagnostic techniques, such as PCR and ELISAs, are used to differentiate between these morphologically identical species.

Comparative Table: Entamoeba Histolytica vs Entamoeba Dispar

Entamoeba histolytica and Entamoeba dispar are two morphologically identical species of amoebae that can parasitize the human intestine, but they have differences in genetic, chemical specifications, and pathogenicity. Here is a table summarizing the differences between the two species:

Entamoeba histolytica is considered pathogenic and has the potential to cause dysentery and extraintestinal disease, while Entamoeba dispar is generally considered nonpathogenic. Differentiating between the two species is important for appropriate diagnosis and treatment. Molecular diagnostic tests, such as PCR, are increasingly being used for both clinical and research purposes to differentiate between E. histolytica and E. dispar.