AUTHOR=Lavelle Ed C. , Carsetti Rita , Pickl Winfried F. , Wiedermann Ursula TITLE=Editorial: Challenges in Vaccinology JOURNAL=Frontiers in Immunology VOLUME=11 YEAR=2020 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2020.632537 DOI=10.3389/fimmu.2020.632537 ISSN=1664-3224