COVID19viruksen
COVID19viruksen refers to the virus that causes the disease COVID-19, officially named SARS-CoV-2. It is a coronavirus in the family Coronaviridae and the genus Betacoronavirus. The virus is enveloped and has a positive-sense single-stranded RNA genome. Its surface is studded with spike proteins that mediate entry into host cells by binding the ACE2 receptor.
Transmission occurs mainly through respiratory droplets and aerosols produced when an infected person talks, breathes, coughs,
Since its emergence in late 2019, several variants of concern have been identified, including Alpha, Beta, Gamma,
Treatment options include antiviral medicines (for example, nirmatrelvir-ritonavir and remdesivir) and supportive care. Access to therapies