Identification of Seasonal Vaccine Hemagglutinin Subtype 1 (H1) Epitopes in Mexican Isolates of the New Influenza A (H1N1) 2009 Virus

Our findings contribute to the estimatation of the degree of epitope conservation among H1 from vaccine virus strains as well as in the different viruses that circulate in the Mexican population. These results may provide new elements to consider for analysis of cross-immunity to influenza viruses including the novel influenza A (H1N1) 2009 pandemic virus.