The Covid Delta variant: how effective are the vaccines?
Live Coronavirus latest news: Second vaccines brought forward for over-40sTelegraph.co.ukJohnson’s new vaccine target sets stern test for GPs and jab centresFinancial TimesGovernment 'open' to shortening gap between Covid vaccine doses to eight weeks for over-40siNewsView Full coverage on Google News
View the full story here: https://www.theguardian.com/world/2021/jun/15/the-covid-delta-variant-how-effective-are-the-vaccines