Author response: Projected resurgence of COVID-19 in the United States in July—December 2021 resulting from the increased transmissibility of the Delta variant and faltering vaccination - Claire P Smith; Shaun Truelove; Michelle Qin; Luke C Mullany; Rebecca K Borchering; Justin Lessler; Katriona Shea; Emily Howerton; Lucie Contamin; John Levander; Jessica Kerr; Harry Hochheiser; et al. (2022)