AUTHOR=Jankovic Dragana , Feng Carl G. TITLE=CD4+ T Cell Differentiation in Infection: Amendments to the Th1/Th2 Axiom JOURNAL=Frontiers in Immunology VOLUME=6 YEAR=2015 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2015.00198 DOI=10.3389/fimmu.2015.00198 ISSN=1664-3224