COVID-19(18) SARS-CoV-2(16) hepatitis E virus(4) Varicella-zoster virus.(3) clades(3) Urumqi(3) Shanghai(3) polymerase chain reaction.(2) Monkeypox(2) Japan(2) Coronavirus disease 2019 (COVID-19)(2) hepatitis A(2) coronavirus disease(2) SARS-CoV-2.(2) Viral isolation.(2) pneumonia.(2) China(2) antibody(2) HIV(2) RT-PCR(2) Imaging features.(1) spatio-temporal dynamics(1) epidemiology.(1) PLC/PRF/5(1) Sand removal(1) Japanese health policy(1) Avian Influenza(1) Alpha variant(1) non-responder(1) Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).(1)