Prion, Viral, Bacterial and Fungal Pathogens of Humans [VV210]; coronavirus disease 2019; disease course; disease transmission; hospital admission; human diseases; mutants; mutations; pandemics; public health; risk; spatial variation; temporal variation; viral diseases; man; Severe acute respiratory syndrome coronavirus 2; Australia; Bangladesh; Canada; France; Germany; India; Indonesia; Italy; Japan; Kenya; Korea Republic; Malaysia; Mexico; Poland; Russia; South Africa; Spain; Thailand; Turkey; UK; Ukraine; USA; APEC countries; Australasia; Oceania; Commonwealth of Nations; high income countries; OECD Countries; very high Human Development Index countries; Least Developed Countries; lower-middle income countries; medium Human Development Index countries; South Asia; Asia; North America; America; European Union Countries; Mediterranean Region; Western Europe; Europe; ASEAN Countries; high Human Development Index countries; South East Asia; Southern Europe; East Asia; ACP Countries; Anglophone Africa; Africa; East Africa; Africa South of Sahara; upper-middle income countries; Homo; Hominidae; primates; mammals; vertebrates; Chordata; animals; eukaryotes; Latin America; Central Europe; Severe acute respiratory syndrome-related coronavirus; Betacoronavirus; Coronavirinae; Coronaviridae; Nidovirales; positive-sense ssRNA Viruses; ssRNA Viruses; RNA Viruses; viruses; Southern Africa; West Asia; British Isles; disease progression; subsaharan Africa; South Korea; Russian Federation; SARS-CoV-2; Britain; United Kingdom; United States of America; viral infections