netherlands covid restrictions continue to rise. additionally, pharmaceutical giant pfizer and biontech have filed for emergency authorization of second booster shot for people 65 and older. the decision comes in effort to bolster waning immunity that comes several months after the first booster. that brings the vaccine to four shots for this age group. joining us, physician and fellow at the brookings institution. dr. kavita patel. she's a former white house adviser and msnbc medical contributor. dr. patel. thank you for joining us. let's start with the boosters. there's a growing debate over the need for a fourth vaccine shot. right now, the companies are just targeting for those 65 and up. what is your perspective for