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Acta Amazonica

Print version ISSN 0044-5967


MEDEIROS, Jansen F; PESSOA, Felipe Arley Costa  and  MARTINS, Marilaine. The importance of thick blood film method for sympatric filarial diagnosis in Amazon basin. Acta Amaz. [online]. 2010, vol.40, n.4, pp.779-780. ISSN 0044-5967.

In this work, the visual diagnostic methods for human filarias in the blood are evaluated. The thick blood film method is more faithful to identify the microfilariae species if compared to policarbonate membrane filtration and Knott methods, especially in areas where more than one species occur, as in Amazon basin. Slides with Mansonella ozzardi microfilariae were mounted and photographed by different diagnosis methods. The thick blood film method is much easier to see the diagnostic morphological characters as cephalic and caudal space, pattern of nucleation of the tail and tail shape that can separate the blood Amazonian microfilariae species.

Keywords : Filariasis; Diagnostic methods; Mansonella ozzardi; Mansonella perstans.

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