Considerations for Extended Intervals for COVID-19 Vaccine Doses

An 8-week interval between the first and second dose of a COVID-19 vaccine might be optimal for some people, as it might reduce the rare risk of myocarditis and pericarditis associated with these COVID-19 vaccines.

• The highest risk is in males 12 through 39 years of age.

Extended interval applies only to the following people who are not moderately or severely immunocompromised:

• Ages 6 months-4 years, depending on their vaccination history
• Ages 12 years-64 years and receiving a 2-dose Novavax series

Reference: https://www.cdc.gov/vaccines/covid-19/clinical-considerations/interim-considerations-us.html#extended-intervals-covid19-vaccine-does