⁍ Drugmakers and research centers around the world are working on COVID-19 vaccines.
⁍ Large global trials of several of the candidates involving tens of thousands of participants well underway.
– coronavirus has killed more than a million people worldwide over the past two years, but an experimental vaccine being developed by Pfizer and the University of Oxford has shown promise in late-stage trials. The vaccine, or COVID-19, is being tested on healthy volunteers in trials involving tens of thousands of people, with results expected as early as this month, reports Reuters. To be effective, the vaccine must show at least 50% efficacy—meaning at least twice as many infections among volunteers who got a placebo as among those in the vaccine group. Independent panels oversee the trials to monitor safety and effectiveness since the data is hidden from companies and researchers. If the vaccine is looking significantly better than the placebo, the companies can apply for emergency use and continue to its intended conclusion.
Source: https://www.reuters.com/article/us-health-coronavirus-vaccines-q-a/qa-where-are-we-in-the-covid-19-vaccine-race-idUSKBN27129F