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Revista da Sociedade Brasileira de Medicina Tropical

Print version ISSN 0037-8682On-line version ISSN 1678-9849

Abstract

ROCHA, Marion Pereira da; SCHEID, Liliane A.  and  ALVES, Sydney Hartz. New selective indicator medium for detection of Aeromonas and Plesiomonas: UNISC agar. Rev. Soc. Bras. Med. Trop. [online]. 2008, vol.41, n.4, pp.431-433. ISSN 0037-8682.  http://dx.doi.org/10.1590/S0037-86822008000400024.

We evaluated a new selective indicator medium (UNISC Agar) for isolation of classical enteropathogens, Aeromonas spp and Plesiomonas shigelloides. The xylose fermentation capacity is indicated by a yellow color (fermenting agents) or blue (no fermenting agent). This, together with the oxidase test, establishes it as an indicator for detecting Aeromonas and Plesiomonas shigelloides. Its productivity and selectivity, as assessed using the absolute count index and relative count index, indicate it as an alternative to the classical feces culturing media. This is because, in a single medium, it enables isolation of Escherichia coli, Shigella spp and Salmonella spp, in addition to Aeromonas and Plesiomonas shigelloides, thereby favoring the laboratory diagnosis of gastroenteritis.

Keywords : Aeromonas; Plesiomonas; Feces culture; Culture medium.

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