Colloidal gold and dot-ELISA rapid tests for screening influenza A virus / 南方医科大学学报
Journal of Southern Medical University
;
(12): 2267-2269, 2010.
Artigo
em Chinês
| WPRIM
| ID: wpr-323686
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the diagnostic efficiency of colloidal gold and dot ELISA rapid tests in clinical screening of influenza A virus.</p><p><b>METHODS</b>The pharyngeal swabs were collected from 297 outpatients suspected of influenza between June and October, 2009 for detection with colloid gold and dot ELISA rapid test, with real-time PCR as the golden methods. The discrepant results of colloid gold and dot ELISA methods were confirmed by sequencing, and the diagnostic efficiency of the two methods was evaluated.</p><p><b>RESULTS</b>Among the 166 samples with influenza A virus infection as confirmed by real-time PCR and sequencing, the diagnostic sensitivity of dot ELISA and colloid gold methods was 54.82% (91/166) and 4.22% (7/166), respectively. The total concordance rate with PCR was 66.67% (Kappa value of 0.35). Among the 133 samples negative for influenza A virus, the specificity of dot ELISA and colloid gold methods was 81.68% (107/131) and 98.47% (129/131), respectively, with a total concordance rate with PCR of 45.79% (Kappa value 0.02). Of the 99 H1N1 influenza samples confirmed by real-time PCR, the detection rate of dot ELISA was 67.3%, whereas that of colloid gold was 5.1%. Out of the 107 dot ELISA-positive but colloid gold-negative samples, 84 were confirmed to be influenza A virus-positive by real-time PCR and sequencing. One sample negative for dot ELISA but positive for colloid gold test was confirmed to be influenza A virus-negative. The detection rate and diagnostic concordance rate for influenza A virus by dot ELISA were significantly higher than those of colloid gold (P<0.05).</p><p><b>CONCLUSION</b>Dot ELISA is better than colloid gold in influenza A virus detection and shows great prospect in clinical screening.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Virologia
/
Ensaio de Imunoadsorção Enzimática
/
Sensibilidade e Especificidade
/
Coloide de Ouro
/
Diagnóstico
/
Influenza Humana
/
Vírus da Influenza A Subtipo H1N1
/
Reação em Cadeia da Polimerase em Tempo Real
Tipo de estudo:
Estudo diagnóstico
/
Estudo de rastreamento
Limite:
Humanos
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2010
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS