Johnson & Johnson single-shot COVID-19 vaccine appears 66% effective overall in global trial

Johnson & Johnson's long-awaited vaccine appears to protect against COVID-19 with just one shot. It's not as strong as some of its two-shot rivals but still potentially helpful for a world in dire need of more doses.

source https://www.cbc.ca/news/health/johnson-johnson-covid-vaccine-trial-1.5893009?cmp=rss