Complex sentence: Amoebiasis, or Amoebic dysentery (or amebic dysentery) is caused by the amoeba "Entamoeba histolytica" and is an intestinal infection that may or may not be symptomatic while lingering in the infected person for several years.
Split into simpler sentences: Amoebiasis, or Amebiasis is caused by the amoeba "Entamoeba histolytica". It is an intestinal infection that may or may not be symptomatic and can be present in an infected person for several years.