Covid booster shots: Third vaccine doses are pushing protection to unexpected heights
Evidence suggests that vaccine booster programmes can take people’s covid-19 protection to unexpectedly high levels, but we don’t yet know how effective existing vaccines will be against the omicron variant Health 30 November 2021 By Clare Wilson A road sign in Buckinghamshire, UK, in mid-November Maureen McLean/Shutterstock While the emergence of the omicron variant has caused concern worldwide, … Read more