Do masks help boost COVID immunity? Medical XpressHow Do Children Fight Off the Coronavirus? The New York TimesScientists discover genetic and immunologic underpinnings of some cases of severe COVID-19 National Institutes of HealthCovid-19 scientists flag key immune function as a turning point in life threatening cases FortuneHidden immune weakness found in 14% of gravely ill COVID-19 patients Science MagazineView Full Coverage on Google News