Will a COVID-19 vaccine alter my DNA?

No. COVID-19 vaccines do not change or interact with your DNA in any way. The Pfizer and Moderna vaccines are mRNA vaccines, which teach our cells how to make a protein that triggers an immune response. The mRNA from a COVID-19 vaccine never enters the nucleus of the cell, which is where our DNA is kept. Johnson & Johnson’s Janssen COVID-19 vaccine is a viral vector vaccine. Viral vector vaccines use a modified version of a different, harmless virus (the vector) to deliver important instructions to our cells to start building protection. The instructions are delivered in the form of genetic material. This material does not integrate into a person’s DNA.

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1. If I've recovered from COVID-19, do I still need to get a COVID-19 vaccination?
2. If I've been treated with monoclonal antibodies or convalescent plasma, can I get the COVID-19 vaccine?
3. What are the most common side effects of the COVID-19 vaccine?
4. Can the COVID-19 vaccine make me sick (or contagious) with COVID-19?
5. Will a COVID-19 vaccine alter my DNA?
6. Can I choose which COVID-19 vaccine I receive?
7. Is it safe for me to get a COVID-19 vaccine if I would like to have a baby one day?
8. After getting a COVID-19 vaccine, will I test positive for COVID-19 on a viral test?
9. When am I considered to be "fully vaccinated?"
10. Do I need to wear a mask and avoid close contact with others if I have gotten 2 doses of the vaccine?