As omicron looms, US is still battling the delta wave


              FILE - Visitors walk around a memorial for victims of COVID-19 at the Griffith Observatory, Nov. 19, 2021, in Los Angeles. While all eyes are on the new and little-understood omicron variant, the delta form of the coronavirus isn't finished wreaking havoc in the U.S. (AP Photo/Marcio Jose Sanchez, File)
            
              FILE - A traveler adjusts his face mask as he walks through the arrivals area at the Los Angeles International Airport in Los Angeles, Nov. 30, 2021. While all eyes are on the new and little-understood omicron variant, the delta form of the coronavirus isn't finished wreaking havoc in the U.S. (AP Photo/Jae C. Hong, File)