COVID-19 Vaccine
COVID-19 vaccine boosters can further enhance or restore protection that might have decreased over time after your primary series vaccination.

Moderna COVID-19 Vaccine (Spikevax)
Recommended for People 6 Months and Older
Primary Series: 18 years and older: 2 doses of Moderna in the primary series, given 4-8 weeks apart. People who are moderately or severely immunocompromised (have a weakened immune system) should get a third dose with the first and second doses separated by 4 weeks, and the second and third doses separated by at least 4 weeks.
6 months through 17 years: 2 doses of Moderna in the primary series, given 4-8 weeks apart. People who are moderately or severely immunocompromised (have a weakened immune system) should get a third dose—with the first and second doses separated by 4 weeks, and the second and third doses separated by at least 4 weeks.
“Credits to Centers for Disease Control and prevention“

Pfizer-BioNTech COVID-19 Vaccine
Recommended for People 6 Months and Older
Primary Series: 5 Years and Older: 2 doses of Pfizer-BioNTech in the primary series, given 3–8 weeks apart. People who are moderately or severely immunocompromised (have a weakened immune system) should get a 3rd dose at least 4 weeks after their 2nd dose in the primary series.
6 months through 4 years: 3 doses of Pfizer-BioNTech in the primary series. The first and second doses are separated by three to eight weeks and the second and third doses are separated by at least eight weeks. For people who are moderately or severely immunocompromised (have a weakened immune system), the first and second doses are separated by three weeks, and the second and third doses are separated by at least eight weeks.
Boosters: 5 years and older: People who received a Pfizer-BioNTech primary series should get a booster. Only some people can get a 2nd booster dose.
6 months through 4 years: Currently a booster dose is not authorized for children in this age group.
“Credits to Centers for Disease Control and prevention“

Johnson & Johnson’s Janssen COVID-19 Vaccine
“Credits to Centers for Disease Control and prevention“
