Month: December 2021

Compared with earlier variants, Omicron may cause less damage to the lungs, new animal research suggests. View original article Contributor: Carl Zimmer and Azeen Ghorayshi

Regulators are also expected to allow even younger children with immune deficiencies to get an extra shot. View original article Contributor: Noah Weiland and Sharon LaFraniere

Two shots of the vaccine reduced the risk of hospitalization from the fast-spreading variant by 85 percent, a clinical trial found. View original article Contributor: Carl Zimmer

International travelers in search of Covid-19 tests are scrambling to find sites that can get them results before their flights take off — and sometimes failing. View original article Contributor: Lauren Sloss