positive, including nearly 70 after an elite dinner here in washington where i am now. also, today, new york mayor eric adams revealed that he tested positive and he attended several events in the past week so it s not clear where he got it but we re told he has no symptoms other than a raspy voice. congresswoman elayne luria and jackie spear also tested positive today and on friday the white house says the president is, quote, living his life and feels a lot of americans are giving covid a shrug now that we have vaccines and treatments so let s talk about that with katherine wu, covers science for the atlantic and her latest piece argues america is staring down its first so-what wave. katherine, thank you so much for your time tonight. so if you would, explain more on what you mean by a so-what wave.