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Table 1 Phenotypes of seasonal influenza A(H1N1) viruses isolated in Dakar, Senegal, in 2008

From: Spread of Influenza A(H1N1) oseltamivir-resistant viruses in Africa in 2008 confirmed by multiple introductions in Senegal

Seasonal A/H1N1 viruses Oseltamivir IC50 (nM) Phenotype (S/R)*
A/Dakar/03/08 1032.4 R
A/Dakar/04/08 943.6 R
A/Dakar/05/08 577.7 R
A/Dakar/06/08 517.5 R
A/Dakar/07/08 430.5 R
A/Dakar/09/08 545.5 R
A/Dakar/11/08 1115.3 R
A/Dakar/12/08 999.6 R
A/Dakar/13/08 1042.9 R
A/Dakar/14/08 775.0 R
A/Dakar/2007 1-2 S
  1. * S = Sensitive; R = Resistant.
  2. Results of testing sensitivity to oseltamivir.
  3. Phenotypic resistance to oseltamivir for seasonal influenza A(H1N1) viruses isolated in 2008 is compared with isolates obtained in 2007, in Dakar, Senegal. The mean value of the Inhibition Concentration 50 for 2008 isolates is 859.3nM (range from 430.5 to 1115.3).