where does the influenza virus settle in your body
Influenza Influenza viruses bind through hemagglutinin onto sialic acid sugars on the surfaces of epithelial cells, typically in the nose, throat, and lungs of mammals, and intestines of birds (Stage 1 in infection figure).[67] After the hemagglutinin is cleaved by a protease, the cell imports the virus by endocytosis.[68]