AUTHOR=Brzoska Josef , von Eick Harald , Hündgen Manfred TITLE=Commentary: Why Haven’t We Found an Effective Treatment for COVID-19? JOURNAL=Frontiers in Immunology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2021.714175 DOI=10.3389/fimmu.2021.714175 ISSN=1664-3224