Also Read | Why server stacks are the new realty playIt added that the number of new deaths climbed to a record high of 93,000 over the previous seven days, with 4.7 million new cases reported over the same period.The arrival of mass vaccination campaigns in the US and Europe had brought hope that the end of the pandemic was in sight; the European Union said Tuesday it was aiming to inoculate 70 per cent of its adult population before the end of August.But many EU countries -- and other nations including India and Russia -- have struggled to get their inoculation programmes off the ground.The United States remains home to the world's worst outbreak in overall numbers, and US President-elect Joe Biden made clear he would be taking no chances.