'Simple is beautiful': One-shot vaccine proves effective
This Sept. 2020 photo provided by Johnson & Johnson shows a scientist in Janssen laboratory in Leiden, The Netherlands. 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 Friday, Jan. 29, 2021 that in the U.S. and seven other countries, the first single-shot vaccine appears 66% effective overall at preventing moderate to severe COVID-19. It was more protective against severe symptoms, 85%.
Johnson & Johnson via AP
The first one-shot COVID-19 vaccine provides good protection against the illness, Johnson & Johnson reported in a key study released Friday, offering the world a potentially important new tool as it races to stay ahead of the rapidly mutating virus....
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