British Prime Minister Boris Johnson on Saturday imposed tighter coronavirus curbs on millions of people in England and largely reversed plans to ease restrictions over Christmas, as the country battles a new more infectious strain of the virus. The number of cases in England has soared in the last two weeks because of a variant of the virus that scientists said is up to 70% more transmissible. Although Johnson and his scientific advisors believe vaccines will still be effective, and the new strain is not more deadly or more serious in terms of the illness caused, the prime minister said the government had to take ... (full story)