Our immune system recognizes that the spike protein does not belong there. Next, our cells display the spike protein on their surface.After the spike protein piece is made, our cells break down the vector virus and remove it. The spike protein is found on the surface of the virus that causes COVID-19. It enters the muscle cells and uses the cells’ machinery to produce a harmless piece of what is called a spike protein. The vector virus in the vaccine is not the virus that causes COVID-19, but a different, harmless virus. Viral vector COVID-19 vaccines are given in a muscle in the upper arm.Any side effects from getting the vaccine are normal signs the body is building protection. The benefit is that people get this protection from a vaccine, without ever having to risk the potentially serious consequences of getting sick with COVID-19. ![]()
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