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Vaccines and Variants

Your Questions Answered

There are currently three vaccines available to prevent COVID-19. All are proven to prevent COVID-19 by strengthening your immune system to fight off disease.

To date serious effects associated with the vaccines are extremely rare. The vaccines are intended to prevent people from getting sick, being hospitalized or potentially dying from COVID-19.

What vaccines are available?

Pfizer/BioNTech
  • Two Doses (primer followed by booster shot 21 days later)
  • 95% protection against symptomatic COVID-19 after two doses
  • Uses mRNA to deliver a genetic code that allows your body to develop antibodies against the virus that causes COVID-19.
  • Authorized for: People 12 years and older
  • Peak Immunity: 7 days after second dose
Johnson & Johnson
  • The CDC and FDA recommended a pause in the use of Johnson & Johnson’s Janssen COVID-19 Vaccine in the United States out of an abundance of caution, effective Tuesday, April 13. However, on April 23, both organizations lifted their pause recommendations. In addition, the CDC reported on April 30 that some of the adverse reactions to the vaccine may have been brought on by anxiety. People who have received the J&J/Janssen COVID-19 vaccine within the past three weeks who develop severe headache, abdominal pain, leg pain or shortness of breath should seek medical care right away.
  • One Dose
  • 72% protection against moderate and severe COVID-19, 85% protective rate against severe disease.
  • Uses a harmless adenovirus vector to deliver a key COVID-19 virus protein. This foreign protein makes your immune system react and build defenses against COVID-19.
  • Authorized for: People 18 years and older
  • Peak Immunity: 14-28 days after single dose
Moderna
  • Two Doses (primer followed by booster shot 28 days later)
  • 94.1% protection against symptomatic COVID-19 after two doses; likely higher protection from severe disease, hospitalization and death
  • Uses mRNA to deliver a genetic code that allows your body to develop antibodies against the virus that causes COVID-19
  • Authorized for: People 18 years and older
  • Peak Immunity: 14 days after second dose