Johnson & Johnson’s COVID-19 Vaccine Results Are Better Than They May Sound

0000000000000 Johnson & Johnson’s Janssen Pharmaceutical Companies announced on Jan. 29 that its one-shot COVID-19 vaccine is 66% effective in protecting against disease, but 85% effective against preventing severe disease—results that could make it especially valuable in the effort to vaccinate parts of the world with weak health care systems. By comparison, the vaccines already … Read more