Impossible, or scarcely likely, to travel between US and UK this summer
That this would be a difficult summer for travel was common knowledge, what is happening in the UK, however, [...]

That this it was going to be a difficult summer for travel was well known, what is happening in the UK and Israel, however, suggests that a return to normalcy is still a long way off.
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Because of a return of the contagions, Israel has reinstated the requirement to wear masks and delayed the opening of its borders, England, which seemed the prime candidate to return to life as before, is again a risk zone so much so that many EU nations have decided to impose quarantines for unvaccinated tourists, and in some cases such as Portugal, Spain and Malta, Her Majesty's subjects are increasingly having a hard time traveling.
In the past few days the word has come down on the speculation, clamored for by the industry in the sector, of a reopening to travel between the UK and the US. The news was given by the Financial Times, which summed up the situation perfectly with a headline: Hopes fade for US-UK travel corridor before end of summer
Industry leaders have tried it, politicians tried, but the result did not change, and the new spikes wiped out the already slim chances of the world's busiest tourist/commercial corridor reopening, That is, the London New York route.
Travel between the two countries has been blocked since March 2020, as well as for the rest of European citizens. All that remains now is to wait and see whether Biden administration will make a different decision for travel from EU countries, which currently have significantly lower vaccination performance and infection levels than in Britain.