Johnson & Johnson Single-Dose Shot 66% Effective In Preventing COVID-19, Less Than Some Others

Video Credit: WJZ Baltimore
Published on January 29, 2021 - Duration: 00:30s

Johnson & Johnson Single-Dose Shot 66% Effective In Preventing COVID-19, Less Than Some Others

Johnson & Johnson's long-awaited vaccine appears to protect against COVID-19 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.


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