AUTHOR=Ramirez Julio TITLE=The Challenge of Predicting Influenza JOURNAL=Frontiers in Microbiology VOLUME=2 YEAR=2011 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2011.00045 DOI=10.3389/fmicb.2011.00045 ISSN=1664-302X