AUTHOR=Petitdemange Caroline , Funderburg Nicholas , Zaunders John , Corbeau Pierre TITLE=Editorial: Infectious Agent-Induced Chronic Immune Activation: Causes, Phenotypes, and Consequences JOURNAL=Frontiers in Immunology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2021.740556 DOI=10.3389/fimmu.2021.740556 ISSN=1664-3224