Published : 10-11-2020 - Duration : 00:39 - View : 25
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Pfizer's coronavirus vaccine candidate is more than 90% effective in preventing COVID-19.Other vaccines like chickenpox, measles, and polio all hover in the 90% and higher effective range.Pfizer and its German partner BioNTech made the announcement Monday, says Business Insider.The partnership is the first to report positive results from the final ...

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