MR. DIAMOND: Hello, and welcome to Washington Post Live. I’m Dan Diamond, a national health reporter here at The Post. It’s been barely 24 hours since the White House announced that President Biden tested positive for covid-19. It’s a spotlight on the continued health threat posed by the pandemic. I’m joined today by the head of the CDC, Dr. Rochelle Walensky, to help us make sense of the latest virus surge and what is to come. Dr. Walensky welcome to Washington Post Live.