EditorialSamantha Lewis, whose long-haul COVID-19 symptoms include difficulties with memory and concentration, in her bathroom, where an index card helps remind her how to brush her teeth and floss, in Aurora, Ill., Oct. 6, 2021. (Alex Wroblewski/The New York Times)
EditorialRichard Floss listens to Sen. Amy Klobuchar (D-Minn.), a Democratic candidate for president, speak at Lemon Tree Tea House in Newton, Iowa on Oct. 20, 2019. (Jordan Gale/The New York Times)