COVID-19 Vaccination Coverage Among Adolescents Aged 12–17 Years — United States, December 14, 2020–July 31, 2021

Receipt of 1 COVID-19 vaccine dose is defined as having received either 1 of the 2 Pfizer-BioNTech or Moderna vaccine doses, or a single dose of the Janssen (Johnson & Johnson) vaccine. As of August 17, 2021, only the Pfizer-BioNTech vaccine had been authorized for use among adolescents aged 12-17 years. Moderna and Janssen COVID-19 vaccines were not authorized under emergency use for this age group during December 14, 2020-July 31, 2021. However, doses of these vaccines administered to persons aged 12-17 years were included in this analysis. During February 27, 2021-July 31, 2021, a total of 21,919 adolescents aged 12-17 years were reported to have received 1 dose of the Janssen COVID-19 vaccine. During December 14, 2021-July 31, 2021, a total of 27,226 adolescents aged 12-17 years were reported to have received only the first dose of the Moderna COVID-19 vaccine; 66,032 adolescents aged 12-17 years were reported to have received both doses of the Moderna COVID-19 vaccine; 2,190 were reported to have received Pfizer-BioNTech for the first dose but Moderna for the second dose; and 5,726 were reported to receive Moderna for the first dose but Pfizer-BioNTech for the second dose. Series completion was defined as receipt of either both doses of the Pfizer-BioNTech or Moderna vaccines, including those that might have received mismatched products between the first and second dose (i.e., Pfizer-BioNTech for the first dose and Moderna for the second dose or vice versa) or a single dose of the Janssen vaccine.