Let it be said at the outset that what is meant here by the term amebiasis is the condition of infestation of the human intestine by the protozoon Endamoeba histolytica. There may be some question as to whether this conception is too limited, whether other amebas should be included, but proof of that is lacking, and this working hypothesis is acceptable.
In spite of readily available information to the contrary, it remains the common conception that this state of parasitism is rare outside tropical regions. It may be reasonably calculated, from surveys in widely separated localities, that from six million to twelve million people in the United States are the hosts of this pathogenic organism.
The difficulty in accepting this apparent fact has been, no doubt, because of the prevalent conception that amebiasis consists of amebic dysentery, whereas in fact that phase constitutes the uncommon acute flare or end result
LYNCH KM. PROLONGED INFLUENCES AND COMPLICATIONS OF INTESTINAL AMEBIASIS: CLINICAL LECTURE AT CLEVELAND SESSION. JAMA. 1934;103(15):1147–1150. doi:10.1001/jama.1934.72750410005008a
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