the spread of the delta variant. let s listen. we re a little bit behind here in the united states. we don t get started right now, we ll not be in a position to have boosters available should we need it come the fall. i think we probably missed the window in term of providing boosters for the delta vary yai can t. where are you on the need for the boosters? there s this growing conflict in the industry. we re drinking information out of a fire hose here. there s so much coming out every day. there s so much we don t know about the delta variant. wee keep hearing based on data aai accrued to date that we don t need to worry that the currently available vaccines, particularly three we have in the united states should work against the delta vary yants. if that s the case, our achilles heel is we don t have a booster,