Moderna says its vaccine is 94.5% effective at preventing Covid-19, appears to stop severe disease
Seven days ago, no one had any data to prove a Covid-19 vaccine could work. Now, two appear to be effective in large scale trials.
Moderna announced on Monday that its vaccine was 94.5% effective at preventing Covid-19, matching or beating the results Pfizer and their partner BioNTech released last week and potentially giving the world a second key weapon against a virus that is now surging to record levels. Pfizer said their vaccine was “more than 90%” effective.
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