AUTHOR= Frontiers Editorial Office TITLE=Expression of concern on: Comparative genomics and characterization of SARS-CoV-2 P.1 (Gamma) variant of concern from Amazonas, Brazil JOURNAL=Frontiers in Medicine VOLUME=11 YEAR=2024 URL=https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2024.1393692 DOI=10.3389/fmed.2024.1393692 ISSN=2296-858X