COVID-19

Pfizer and Moderna are mRNA vaccines, while Johnson and Johnson and Novavax are viral vector vaccines.

For information about these types of vaccines, click here.

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Pfizer and Moderna are recommended for people as young as 6 months old. Novavax is approved for ages 12+. Johnson and Johnson is approved for people over 18. 

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The schedule depends on the vaccine and whether you have already been vaccinated against COVID-19

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Pfizer (Comirnaty) - Bivalent:

• 6 months - 4 years:

  • If not previously vaccinated: Three doses (3 weeks between dose 1 and 2, 8 weeks between dose 2 and 3)​

  • One previous dose of monovalent vaccine: two additional doses (started at least 3 weeks after the original dose and 8 weeks between doses)

  • Two or three previous doses of monovalent vaccine: one additional dose (at least 8 weeks or 2 months after the last dose)

• Ages 5+:

  • One dose (with an option for a booster for 65+ 4 months after dose 1)​

  • People who have previously received a monovalent vaccine can receive a bivalent vaccine two months after their last dose 

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Moderna (Spikevax) - Bivalent:

• ​6 months - 5 years:

  • If not previously vaccinated: Two doses (1 month between doses)​

  • One previous dose of monovalent vaccine: one additional dose (1 month after the original dose)

  • Two previous doses of monovalent vaccine: one additional dose (at least 2 months after the last dose)

• Ages 6+:

  • One dose (with an option for a booster for 65+ 4 months after dose 1)​

  • People who have previously received a monovalent vaccine can receive a bivalent vaccine two months after their last dose 

Novavax: 

• Novavax requires two doses 3 weeks apart

• Boosters are approved for ages 18+

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Jannsen (J&J):

• This vaccine only requires one dose and is approved for ages 18+

• This vaccine is only recommended for people who cannot receive other COVID-19 vaccines or who otherwise would not get vaccinated