.@Merck CEO Ken Frazier speak @HarvardHBS: $MRK commit 2 broad, equitable, affordable access.  No matter where you are in world, you s/ have access #vaccine. Unless all are #safe, none of us are. #COVID19 #coronavirus #health #safety $JNJ $AZN $PFE $GSK $MRNA $NVAX @HBSAlumni