coronavirus December 22, 2021 8:31 am CDC Director: ‘There Really Is No Need to Panic' Rochelle Walensky, director of the Centers for Disease Control and Prevention, says with the available tools to help prevent and fight COVID-19, “there really is no need to panic.” US & World Videos 4:30 A closer look: New COVID variants lead to uptick in cases 2:19 San Francisco barbershop struggles to stay open after pandemic 0:51 Alameda County using dogs to detect COVID 3:57 Interview: Doctor's perspective on COVID 4 years after shutdown started 2:27 Marking 4 years since COVID-19 shut down the Bay Area