Animated clip of SARS-CoV-2 fusing with a host cell. To see the full video, click on the image. Covid-19 begins when the SARS-CoV-2 virus first encounters cells in the upper airway that express a ...

New study reveals how lingering spike protein in the brain's borders could explain long-term COVID-19 neurological symptoms and highlight vaccines' protective role. Study: Persistence of spike protein ...