Shoppers wearing face coverings due to Covid-19, but pulled down under their chin, walk along Oxford Street in central London on June 7, 2021. The Delta variant of the coronavirus, first discovered in India, is estimated to be 40 percent more transmissible than the Alpha variant that caused the last wave of infections in the UK, Britain's health minister said Sunday. / AFP / Niklas HALLE'N
Shoppers wearing face coverings due to Covid-19, but pulled down under their chin, walk along Oxford Street in central London on June 7, 2021. AFP

UK retailers report strong May sales after lockdown ends