Can Aspergillus fumigatus conidia cause false-positive results in the galactomannan enzyme immunoassay test?
Rev. Soc. Bras. Med. Trop
; Rev. Soc. Bras. Med. Trop;51(3): 387-389, Apr.-June 2018. tab, graf
Article
em En
| LILACS
| ID: biblio-1041461
Biblioteca responsável:
BR1.1
ABSTRACT
Abstract INTRODUCTION:
Several factors can cause false-positive results in the galactomannan (GM) test; however, others remain unknown. Presently, the impact of airborne contamination by Aspergillus conidia during enzyme-linked immunosorbent assay (ELISA) remains uninvestigated.METHODS:
We studied 12 A. fumigatus isolates. Fungal conidia were serially diluted and tested for GM detection using the Platelia® Aspergillus enzyme immunoassay (EIA).RESULTS:
The conidia concentration required for an EIA-positive result was 4.8 × 103 (median).CONCLUSIONS:
This is the first study to evaluate the impact of environmental contamination on the Platelia® Aspergillus EIA assay. Only massive contamination can interfere with GM optical readings, suggesting that environmental contamination does not cause false-positive test results.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Aspergillus fumigatus
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Esporos Fúngicos
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Ensaio de Imunoadsorção Enzimática
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Reações Falso-Positivas
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Mananas
Limite:
Humans
Idioma:
En
Revista:
Rev. Soc. Bras. Med. Trop
Assunto da revista:
MEDICINA TROPICAL
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil