More than 50 Covid-19 candidate vaccines are in development across the biotech and pharma industry, and multiple approaches are being tested, from protein subunits, RNA, DNA or viral vectors. While many years are usually need to develop a vaccine, industry efforts aim to cut it down to 18 months, which may be over-optimistic. Among multiple Covid vaccine candidates, mRNA based BNT162 is one of the most promising. BioNTech and Pfizer plan to quickly move through the different phases of clinical development, manufacture millions of doses this year and hundreds of millions in 2021 #postcovid19 #covidvaccine
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