Americans in their 20s account for 1 in 5 new COVID-19 cases Los Angeles TimesCDC flags 1600 flights where person on board may have had COVID-19 | TheHill The HillBattle rages inside US hospitals over how Covid-19 strikes and kills The GuardianTwo New Studies Say You Can Now Get Coronavirus This Way Yahoo LifestyleBattle Rages Inside Hospitals Over How COVID Strikes and Kills Kaiser Health NewsView Full Coverage on Google News