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  • Title: Characterization of potentially pathogenic free-living amoebae in sewage samples of Calcutta, India.
    Author: Bose K, Ghosh DK, Ghosh KN, Bhattacharya A, Das SR.
    Journal: Braz J Med Biol Res; 1990; 23(12):1271-8. PubMed ID: 2136561.
    Abstract:
    1. It is widely accepted that foul or polluted environments are the principal sources of potentially pathogenic species of free-living amoebae. The present paper is the first report of occurrence of potentially pathogenic free-living amoebae in sewage samples of Calcutta, India. 2. We describe the occurrence, isolation, specific identification and comparative mouse pathogenicity test of two pathogenic amoebae, viz., Naegleria fowleri (N. aerobia) Carter, 1970, causing human meningoencephalitis and Acanthamoeba castellanii Douglas, 1930, causing granulomatous amoebic encephalitis, and one non-pathogenic amoeba, viz., A. astronyxis Ray and Hayes, 1959, in sewage samples of Calcutta, India. 3. The existence of both pathogenic and non-pathogenic amoebae living side by side is of considerable epidemiological relevance.
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