This copy is for your personal, non-commercial use only. Distribution and use of this material are governed by
our Subscriber Agreement and by copyright law. For non-personal use or to order multiple copies, please contact
Dow Jones Reprints at 1-800-843-0008 or visit www.djreprints.com.
https://www.wsj.com/articles/pfizer-biontech-ask-fda-to-green-light-tweaked-covid-19-vaccine-11661184362
