What to know about the different COVID-19 vaccines Find out more about the different vaccines, how they work, how many doses are needed, possible side effects and who shouldn’t get the vaccine. Learn more about COVID-19 vaccines COVID-19 vaccine: Get the facts Different types of COVID-19 vaccines: How they work COVID-19 vaccine: Will it affect my mammogram Continue to wear a mask, practice social distancing after being vaccinated for COVID-19 Screening mammograms and COVID-19 vaccine Side effects — or lack of side effects — after being vaccinated for COVID-19 Nervous about getting vaccinated for COVID-19? Don’t hesitate, dive into data for COVID-19 vaccine (podcast) Answering questions about COVID-19 vaccines (podcast) Common questions about COVID-19 vaccinations answered COVID-19 vaccine myths debunked What parents should know about COVID-19 vaccines and children Reducing infection from asymptomatic COVID-19 carriers? Mayo Clinic expert answers questions about new COVID-19 vaccine Why you should get the first COVID-19 vaccine offered to you A race between vaccines, the virus and variants (podcast) What studies show about pregnancy, COVID-19 vaccines When will kids be eligible to be vaccinated for COVID-19? Patient education about COVID-19 vaccines COVID-19 vaccine: Patient education (PDF) FDA: Pfizer-BioNTech COVID-19 vaccine The Pfizer/BioNTech COVID-19 vaccine: What you need to know (PDF) FDA: Moderna COVID-19 vaccine The Moderna COVID-19 vaccine: What you need to know (PDF) FDA: Janssen COVID-19 vaccine The Johnson & Johnson Janssen COVID-19 vaccine: What you need to know (PDF) COVID-19 vaccine reactions: The difference between common and allergic reactions (PDF) See Mayo Clinic experts discuss COVID-19 vaccines in videos Can I infect someone after I’ve received the COVID-19 vaccine? (video) Do I still need to get vaccinated if I’ve already had COVID-19? (video) Can children get the COVID-19 vaccine? (video) mRNA vaccines and immunity (video) COVID-19 vaccine doses and immunity (video) Are the new COVID-19 vaccines safe? (video) What is a COVID-19 variant strain? (video) What should I know about the Johnson & Johnson vaccine? (video) The Johnson & Johnson adenovirus vaccine explained (video) How does COVID-19 affect people with diabetes? (video) Find out more about COVID-19 vaccine safety After COVID-19 vaccination: Is it OK to visit with friends and loved ones? Will fast-tracked COVID-19 vaccines be safe? Answers to common questions about whether vaccines are safe, effective and necessary Are COVID-19 vaccines safe and effective? What does the CDC's new guidance for people who have been fully vaccinated against COVID-19 mean?