The COVID-19 pandemic is the result of infection with the SARS-CoV2 virus. The initial point of viral infection at the molecular level is mediated by the homo-trimeric Spike protein, a class I fusion protein embedded in the viral membrane.

The COVID-19 pandemic is the result of infection with the SARS-CoV2 virus. The initial point of viral infection at the molecular level is mediated by the homo-trimeric Spike protein, a class I fusion protein embedded in the viral membrane.