First and second COVID-19 waves in Japan: A comparison of disease severity and characteristics
Sho Saito, Yusuke Asai, Nobuaki Matsunaga, Kayoko Hayakawa, Mari Terada, Hiroshi Ohtsu, Shinya Tsuzuki, Norio Ohmagari
Topics & Concepts
Coronavirus disease 2019 (COVID-19)2019-20 coronavirus outbreakSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)BetacoronavirusPandemicDiseaseSeverity of illnessMedicineCoronavirus InfectionsVirologyInternal medicineOutbreakInfectious disease (medical specialty)COVID-19 Clinical Research StudiesLong-Term Effects of COVID-19COVID-19 diagnosis using AI