The EUAs allowed the vaccines to be quickly distributed for use while maintaining the same high safety standards required for all vaccines. Initially, they determined that COVID-19 vaccines met FDA’s safety and effectiveness standards and granted those vaccines Emergency Use Authorizations (EUAs). Any side effects from getting the vaccine are normal signs the body is building protection.īefore vaccines are made available to people in real-world settings, FDA assesses the findings from clinical trials. People get this protection from a vaccine, without ever having to risk the potentially serious consequences of getting sick with COVID-19. At the end of the immune building process, our bodies have learned how to help protect against future infection with the virus that causes COVID-19.This response is similar to what your body does if you get sick with COVID-19, but is temporary. This triggers our immune system to produce antibodies and activate other immune cells to fight off what it is an infection. 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.
At the end of the process, our bodies have learned how to help protect against future infection with the virus that causes COVID-19.This is what your body might do if you got sick with COVID-19. This triggers our immune system to produce antibodies and activate other immune cells to fight off what it thinks is an infection. Our immune system recognizes that the protein does not belong there. Next, our cells display the spike protein piece on their surface.After the protein piece is made, our cells break down the mRNA and remove it, leaving the body as waste. Once inside, they use the cells’ machinery to produce a harmless piece of what is called the spike protein. After vaccination, the mRNA will enter the muscle cells.First, mRNA COVID-19 vaccines are given in the upper arm muscle or upper thigh, depending on the age of who is getting vaccinated.
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