How is this vaccine given?
Read all vaccine information sheets provided to you.
COVID-19 vaccine is given as an injection (shot) into a muscle. The Janssen vaccine is given as a single dose. You should not receive this vaccine as a second shot for another type of COVID-19 vaccine (such as the Moderna or Pfizer types).
The first booster dose is given at least 2 months after you received your vaccine. You should preferably receive Pfizer or Moderna COVID-19 vaccine for your booster dose. People who had blood clots after receiving the Janssen vaccine should not receive a Janssen booster dose.
The second booster dose of Pfizer or Moderna COVID-19 vaccine is given to people 50 years and older at least 4 months after the first booster dose was given.
Your doctor or vaccination provider will determine which COVID-19 vaccine you will receive as a booster dose.
You will receive a vaccination card showing the date and type of COVID-19 vaccine you received.
You will be "fully vaccinated" if it has been at least 2 weeks since you received this vaccine. You may become infected with COVID-19 if the vaccine has not had enough time to provide protection.
Even after you are fully vaccinated, keep using infection control methods when you are in public or around others who may not have been vaccinated. This includes social distancing, hand-washing, using protective face covering, disinfecting surfaces you touch a lot, and not sharing personal items with others.
Receiving a COVID-19 vaccine will not cause you to test positive on a coronavirus test. However, once your body develops immunity to COVID-19, you could test positive on an antibody test (a test to detect immunity in your body from previous exposure to coronavirus).
It is not known how long this vaccine will protect you from infection with COVID-19. It also is not known how long immunity will last in a person who's been infected with and recovered from COVID-19. COVID-19 vaccine is still being studied and all of its risks are not yet known. Updated federal public health recommendations may be found at https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated-guidance.html