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The sensitivity and specificity of four real-time PCR assays (HPA A(H1)v, CDC A (H1)v, HPA A(N1)v and NVRL S-OIV assays) was evaluated for detection of influenza A(H1N1)v viruses. Nose and throat swab samples containing influenza A(H1N1)v viruses, seasonal influenza AH3N2, AH1N1, influenza B viruses, or negative for influenza viruses were tested by the four assays. Specificity was also analysed u
A worldwide increase of adamantane-resistant influenza A(H3N2) and oseltamivir-resistant influenza A(H1N1) viruses has been observed in recent years. The aim of this study was to analyse the prevalence of antiviral drug-resistant influenza A in a region of northern Spain. Resistance to adamantanes was detected in 45.3% (68/150) of influenza AH3 viruses analysed for the period from 2000-1 to 2008-
