Tuesday, April 16

Day: December 2, 2020

How many people need a vaccination for herd immunity?
Featured, United Kingdom

How many people need a vaccination for herd immunity?

    After nearly nine months of coronavirus restrictions, there may be a light at the end of the tunnel. The UK is the first country in the world to approve Pfizer’s jab for widespread use, with the NHS standing ready to begin immunising care home residents and staff next week. With an effective vaccine long been hailed a route back to life as we knew it, many are undoubtedly wondering how many people have to receive the jab to achieve herd immunity, freeing us of future lockdowns. Herd immunity occurs when an infection cannot take hold in a community. It can come about in two ways if a sufficient number of people have overcome a virus and are now immune, or via vaccination. In March, the UK’s chief scientific adviser Sir Patrick Vallance told ITV News: When you look ...