SAN FRANCISCO (KRON) – As Delta variant cases continue to rise, the U.S. State Department and the Centers for Disease Control and Prevention on Monday issued their highest warnings against travel to the United Kingdom.
Both agencies raised the UK to Level 4, which asks Americans to avoid all travel there.
“If you must travel to the United Kingdom, make sure you are fully vaccinated before travel,” the CDC said in an advisory.
The State Department said, “Do not travel to the United Kingdom due to COVID-19.”
The UK was previously lowered to a Level 3 advisory rating by the U.S. back in May.
Two-thirds of British adults are fully vaccinated; children are not yet eligible.