March 01, 2021 17:51 Updated Follow The Pfizer and Moderna vaccine require two doses. The Johnson & Johnson vaccine requires one. Related articles I don’t have consistent access to a mobile phone, how can I ensure that I am signed up? How can I ensure that I won’t miss my second shot if I lose access? If I get the first dose and then test positive for COVID-19, do I make an appointment for the second dose, or do I wait 90 days? Do I even need the second dose? Can you get the Pfizer vaccine for the first dose and the Moderna vaccine for the second dose? How many days should pass between getting the first vaccination and getting the second vaccination? Who should NOT get the Moderna COVID-19 vaccine (shot)?