The real vaccine? Pfizer claims that the drug is 90% effective against Covid-19

News of a vaccine that is 90 percent effective against Covid-19 has given rise to great hope all over the world. The vaccine was developed by the New York-based pharmaceutical giant Pfizer and the German company BioNTech. The European Commission confirmed that it will soon sign a contract with Pfizer and BioNTech for up to 300 million doses. We dig deeper with our panel and ask if this is the beginning of the end of the pandemic.