Promising COVID-19 Vaccine Was 90% Effective in Phase 3 Trial

A new COVID-19 vaccine called BNT162b2, developed by Pfizer and BioNTech, was 90% effective in preventing COVID-19 infections in the final stage, Phase 3 trials, which are still going on.Promising COVID-19 Vaccine Was 90% Effective in Phase 3 Trial

Phase 3 began in late July and included 43,538 participants of various ethnic backgrounds. Preliminary findings showed that protection in patients was achieved 7 days after the second of two vaccine doses, and 28 days after the first.

Despite the promising results, the logistics problem should be solved as the vaccine must be kept super-cooled and currently requires two doses to bestow immunity.

This vaccine is a new approach to protecting against viruses as unlike traditional vaccines this one tricks the patient's immunity to produce viral proteins itself. These proteins are harmless, but they are sufficient to enable an immune response to the virus.

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