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Pfizer-BioNTech COVID-19 Vaccine Gets WHO Approval

The New Year 2021 comes with a new hope. World Health Organization (WHO) approves Pfizer-BioNTech COVID-19 vaccine for developing nations- CNN reports on January 1, 2021. There are at least 50 coronavirus vaccine candidates in the approval process in the world. However, Pfizer-BioNTech takes the lead. It has already been administered among volunteer health professionals …

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