News CDC gives go-ahead to J&J, Moderna and mix-and-match COVID boosters, beginning as soon as Friday October 21, 2021Elizabeth Weise, USA TODAYComments Off on CDC gives go-ahead to J&J, Moderna and mix-and-match COVID boosters, beginning as soon as Friday 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.