The Pfizer and Moderna vaccine both require two doses. The Pfizer vaccine requires a booster after 21 days and Moderna requires a booster after 28 days. It is critical to receive both doses for the vaccine to be highly effective. Pfizer and Moderna 3rd doses and boosters are available for eligible individuals. Please see the COVID-19 vaccine page for eligibility details.
The Johnson & Johnson vaccine requires one dose, but you can now receive a booster dose of Johnson & Johnson, or an mRNA vaccine- Pfizer or Booster