The Johnson & Johnson shot, which would be the third vaccine for a pandemic that has killed more than 500,000 Americans, was found to be more than 85% effective at preventing severe illness and 66% protective overall.
from WebMD Health https://www.webmd.com/vaccines/covid-19-vaccine/news/20210224/jj-vaccine-may-block-spread-of-coronavirus-fda-says?src=RSS_PUBLIC
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