The daily average for hospital admissions has risen past 100,000 for the first time since last winter, BBC reported.The recent wave, driven by the Delta variant, is most severe in the US South but cases are rising nationwide.

Monday’s guidance from the 27-nation bloc reverses advice from June that lifted restrictions on American travellers ahead of tourism season.

The recommendation is nonbinding, meaning individual countries will be allowed to decide if they still wish to allow US visitors with proof of vaccination, negative tests, or quarantine.

Though the EU first lifted travel restrictions on Americans in June, the US has kept their ban on European non-essential travel in place since March 2020.