Is Antigenic Sin Always “Original?” Re-examining the Evidence Regarding Circulation of a Human H1 Influenza Virus Immediately Prior to the 1918 Spanish Flu

Gagnon, A., Acosta, J. E., Madrenas, J., & Miller, M. S. (2015). Is Antigenic Sin Always “Original?” Re-examining the Evidence Regarding Circulation of a Human H1 Influenza Virus Immediately Prior to the 1918 Spanish Flu. PLoS Pathogens, 11(3), 1–6. https://doi.org/10.1371/journal.ppat.1004615