| isolation and identification of free-living amoebae from some water sources in alexandria. | samples from different water sources of alexandria, and from nasal passages of 500 healthy children inhabiting areas nearby these sources were examined for the presence of free-living amoebae. these samples were cultured on 1.5% non nutrient agar streaked with bacteria. amoebae were isolated and identified by means of their morphological characters and ability to produce flagellated forms. characteristics of the cystic stages and pattern of excystation also aided in the identification of the var ... | 1994 | 8077745 |