Hemagglutinin

Hemagglutinin is a protein found on the surface of certain viruses, particularly the influenza virus. It plays a crucial role in the virus's ability to infect host cells. Specifically, hemagglutinin helps the virus attach to and enter the cells in the respiratory system. This process is essential for the virus to replicate and spread. Additionally, hemagglutinin is an important target for vaccines, as it can stimulate the immune system to recognize and fight the virus. Understanding hemagglutinin is key to developing effective flu treatments and vaccines.