RHODE ISLAND: The first one-shot Covid-19 vaccine provides good protection against the illness, Johnson & Johnson reported in a key study released on Friday, offering the world a potentially important new tool as it races to stay ahead of the rapidly mutating virus.
ONE-SHOT DEAL This September 2020 photo provided by Johnson & Johnson shows a clinician preparing to administer investigational Janssen COVID-19 vaccine. Johnson & Johnson's long-awaited Covid-19 vaccine appears to protect against symptomatic illness with just one shot – not as strong as some two-shot rivals but still potentially helpful for a world in dire need of more doses. Johnson & Johnson said on Jan. 29, 2021 that in the US and seven other countries, the first single-shot vaccine appears 66 percent effective overall at preventing moderate to severe Covid-19. It was more protective against severe symptoms at 85 percent. AP