UK health authorities are facing a dilemma over which vaccines they should use to combat further waves of Covid-19.
As figures revealed another dramatic jump in cases this week, scientists and doctors are admitting they may have to choose between jabs that are most effective and ones that are likely to be widely available.
More than two million people had the virus in the week ending June 24 in the UK, a rise of more than 30% on the previous week and health authorities are urging authorities to act fast to prepare for an autumn that could see the Omicron BA4 and BA5 variants of the virus continue to spread across the UK.
