“Booster and Additional Primary Dose COVID-19 Vaccinations Among Adults Aged ≥65 Years — United States, August 13, 2021–November 19, 2021,” by Hannah E. Fast, Elizabeth Zell, Bhavini Patel Murthy, Neil Murthy, Lu Meng, Lynn Gibbs Scharf, Carla L. Black, Lauren Shaw, Terence Chorba, and LaTreace Q. Harris (Vol. 70, No. 50, December 17, 2021, .pdf and HTML format, p. 1735-1739).
www.cdc.gov/mmwr/volumes/70/wr/mm7050e2.htm?s_cid=mm7050e2_w
