The delta variant first found in India is estimated by scientists advising the government to be between 40% and 80% more transmissible than the previous dominant strain. It now accounts for more than 90% of infections in the U.K.
From Canada to India, one nation after another barred flights from Britain, while France banned British trucks for 48 hours while the strain is assessed.
Johnson warned of a “perilous turning point” and said the new restrictions could last for six months.
After months of acrimony, Greece finally clinched a bailout agreement with its European creditors on Monday that will, if implemented, secure the country's place in the euro and avoid financial collapse.
Following weeks of recrimination and distrust, Greece and its creditors in the 19-nation eurozone reached an agreement Friday on extending the country's rescue loans, a move that should dramatically ease concerns it was heading for the euro exit as soon as next month.