how COVID-19 vaccines work and get a better understanding of COVID-19 viral vector vaccines. 1 shot Shot in the muscle of the upper armFor a full list of ingredients, see the Fact Sheet for Recipients and Caregivers for the J&J/Janssen COVID-19 vaccine. [124 KB, 6 pages]external iconIf you aren’t able to get the J&J/Janssen COVID-19 vaccine, you may still be able to get a different type of COVID-19 vaccine.
Learn more information for people with allergies.In the arm where you got the shot:Throughout the rest of your body:These side effects usually start within a day or two of getting the vaccine.
Side effects might affect your ability to do daily activities, but they should go away in a few days. Get tips on what to expect after getting.