Fact: You cannot get COVID-19 from the vaccine.
None of the COVID-19 vaccines in the United States use the live virus that causes COVID-19. Vaccines against SARS-CoV-2 use inactivated virus, small pieces of the virus or a gene from the virus. None of these fragments of RNA are capable of causing infection.
As with many vaccines, some people experience mild temporary symptoms, including fever, fatigue and soreness at the injection site, for a day or two after receiving the COVID-19 vaccine. This is a completely normal response and a sign the body is busy building immunity.
It’s important to know that the process of building immunity typically takes several weeks. That means you could be infected with COVID-19 just before or just after receiving the vaccination. If that happens, the vaccine did not give you the virus. Rather, you contracted the virus before your body had a chance to build sufficient immunity.
Learn more about how COVID-19 vaccines work.