Previous vaccines and masks may hold down COVID-19, some researchers say KSL.comThis 21-year-old thought he had overcome a mild case of COVID-19. Then he went into organ failure WMUR Manchester'We need to tell everyone': Teens, young adults who vape more at risk for COVID-19, study says USA TODAY21-year-old Florida man recovers from organ failure after mild COVID-19 symptoms WFLAStudy: Young Vapers Far More Likely to be Diagnosed With COVID-19 FuturismView Full Coverage on Google News