Coronavirus vaccine pre-orders top 5 billion in worldwide scramble for supplies

Although none of the coronavirus vaccines under development has proved its efficacy yet in clinical trials, at least 5.7 billion doses have been pre-ordered around the world.First shipments of a Covid-19 vaccine created by Western laboratories have often been snapped up by the United States.Six vaccines are in phase 3 efficacy trials involving thousands of people.In a surprise announcement, Russian President Vladimir Putin claimed on Tuesday that a vaccine dubbed “Sputnik V” – after the Soviet…

Read the original article at South China Morning Post