Meningoencephalitis by Naegleria fowleri: epidemiological study in Anzoategui state, Venezuela

Revista da Sociedade Brasileira de Medicina Tropical

Julman R. Cermeño²  Isabel Hernández²  Helal El Yasin¹  Rubén Tinedo¹  Raúl Sánchez¹  Gladys Pérez¹  Rosalía Gravano²  Aida Ruiz² 

[1],Universidad de Oriente Núcleo Bolívar Escuela de Medicina,Venezuela

关键词: Amoebic meningoencephalitis;    Epidemiology;    Free-living amoebae;    Naegleria fowleri;    Meningoencefalite amebiana;    Epidemiologia;    Amebas de vida livre;    Naegleria fowleri;   

DOI  :  10.1590/S0037-86822006000300007

来源: SciELO

【 摘 要 】

A case of primary amoebic meningoencephalitis produced by Naegleria fowleri was diagnosed in the Independencia county of Anzoategui State, Venezuela. This case motivated the realization of the present epidemiological study with the aim of identifying free-living amoebae in this area. Representative water samples were taken and physicochemical and microbiologic analyses were carried out. Trophozoites and cysts of Naegleria spp, were detected in 44.4% (n=4). An excellent concordance was found among the observations of free-living amoebae in smears and those of monoxenic cultures in non nourishing agar with Klebsiella pneumoniae (Kappa=1; p= 0.003). A variable load of aerobic mesophils was obtained. Moulds and yeast averages presented 3.0 CFU/ml (SD± 2.0) and 102.9 CFU/ml (SD± 32.2), respectively. One hundred per cent of the samples presented a most probable number of total and fecal coliforms of 240,000 NMP/100mL. Naegleria spp was present in waters of the Independence county of Anzoategui state, which constitutes a risk for people that use these sources.

【 授权许可】

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