AUTHOR=Brites Carlos , Borges Álvaro H. , Sprinz Eduardo , Page Kimberly TITLE=Editorial: HIV and Viral Co-infections JOURNAL=Frontiers in Microbiology VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2021.731337 DOI=10.3389/fmicb.2021.731337 ISSN=1664-302X