The second dose of the Pfizer vaccine is typically given 3 weeks (21 days) after the first dose. The second dose of the Moderna vaccine is typically given 4 weeks (28 days) after the first dose.   

The Centers for Disease Control and Prevention says an 8-week interval (56 days) between the first and second mRNA doses (Pfizer or Moderna) may be optimal for some people age 12 and older, especially for males ages 12 to 39. Learn more here or talk with your healthcare provider.

 You will be asked to sign up for your second vaccination when you get the first one, and the scheduler will help make sure the correct number of days pass between vaccinations. It is important to make sure you get your second dose so that you are as protected as possible. Please remember to bring your vaccination card to your second dose appointment for proof of full vaccination. For more detailed information, visit https://www.cdc.gov/vaccines/covid-19/info-by-product/clinical-considerations.html.