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What Does a 90% Vaccine Effectiveness Rate Mean?

The first vaccine trial had a 90% success rate. But what does that mean for the vaccinated when it comes to catching Covid?
Found by Adrian SherlingAdrian Sherling
From the podcast More or Less: Behind the Stats
Found by Adrian SherlingAdrian Sherling
From the podcast More or Less: Behind the Stats
3 MINSPlayer button

    Covid: The Race for a Vaccine
    13 clips 45 MINS
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