COVID-19 cases in the United States has now passed 6 million, and the global total has exceeded 27 million.With winter around the corner, hopes for an effective vaccine against COVID-19 are mounting.A vaccine developed at the Gamaleya Research Institute of Epidemiology and Microbiology, in Moscow, has received a lot of attention, though not all of it has been positive.Stay informed with live updates on the current COVID-19 outbreak and visit our coronavirus hub for more advice on prevention and treatment.Some scientists have been skeptical of the vaccine, which was provisionally approved by the Russian government before any safety data had been published.Legitimizing its development, an article now appearing in The Lancet details the.