More than half a million people in the UK have been vaccinated againstCovid-19, Boris Johnson said, as he moved to soothe concerns the countryrisked being effectively cut off from parts of Europe and beyond following thediscovery of a new strain of coronavirus.
Four persons who recently came to Delhi from the UK and tested positive for COVID-19, have been found infected with the new strain..
Thousands of antibody treatments are not being used.
