travel to UK, indicating a very high level of COVID-19 in the country. "Your risk of contracting COVID-19 and developing severe symptoms may be lower if you are fully vaccinated with an FDA authorized vaccine.
Before planning any international travel, please review the CDC’s specific recommendations for fully vaccinated and unvaccinated travelers," the US state department said in an advisory.
In May, the US government had lowered the UK to a "Level 3" advisory rating. The UK on Monday lifted most pandemic restrictions despite surging infections and warnings from experts.