Takanao HashimotoAkihiko OzakiDivya BhandariToyoaki SawanoAnju MurayamaSunil ShresthaRanjit SahTetsuya TanimotoJuan José Montenegro-IdrogoAlfonso J. Rodríguez‐Morales2026-03-222026-03-22202110.1016/j.tmaid.2021.102145https://doi.org/10.1016/j.tmaid.2021.102145https://andeanlibrary.org/handle/123456789/86941enSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Coronavirus disease 2019 (COVID-19)2019-20 coronavirus outbreakVirologyPandemicSars virusCoronavirus InfectionsMedicineLimited capacity of SARS-CoV-2 variants testing in Japan: A secondary analysis using publicly available dataletter