News CDC gives go-ahead to J&J, Moderna and mix-and-match COVID boosters October 21, 2021 Elizabeth Weise, USA TODAY Comments Off on CDC gives go-ahead to J&J, Moderna and mix-and-match COVID boosters The quick approval by the CDC Director Dr. Rochelle Walensky means J&J, Moderna and mix-and-match boosters could begin as early as Friday.