The Harvard research team found that under normal conditions, cells in the upper respiratory tract, namely the nose and throat, form similar structures. with small fat particles released outside the cell all the time
These lipid particles are called EVs or extracellular vesicles, because these particles are released from the cell, they also carry proteins attached to the cell surface. This includes the proteins that the virus uses to bind to cells, such as ACE2 that the SARS-CoV2 virus also binds to. Therefore, the body produces EVs as a natural defense mechanism against infection viral.
