umls-concept:C0000879 | skos:definition | CSP: facultative parasite of humans usually causes chronic infectin of the skin or central nervous system; causative agents of keratitis (corneal inflammation and opacity); most common ameba in fresh water and soil.,MSH: A genus of free-living soil amoebae that produces no flagellate stage. Its organisms are pathogens for several infections in humans and have been found in the eye, bone, brain, and respiratory tract. | lld:umls |