Switzerland was lifted to the highest level, urging American citizens not to travel to the country, according to the US state department and the Centers for Disease Control and Prevention.
They warned people who have been fully vaccinated of a risk of catching the virus in Switzerland due to the health situation.
Infections rates have hovered around 2,500 per day recently and daily hospital admissions are around 60 cases, according to the Federal Office for Public Health.
Estonia and Azerbaijan were also lifted to the top risk level, while Germany and Canada were lifted to the second-highest level.
The move comes as European Union governments agreed on Monday to remove the US from the EU’s safe travel list, meaning US visitors and those from five other countries are likely to face tighter controls, such as Covid-19 tests and quarantines.
Switzerland, which is not a member of the EU, is considering a reintroduction of travel quarantines in autumn according to Interior Minister Alain Berset.
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Switzerland might reintroduce travel quarantine for autumn
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Swiss Health Minister Alain Berset has told the NZZ am Sonntag that he is considering bringing back quarantine for travellers for the autumn holidays.
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Some Swiss hospitals have begun delaying non-urgent operations due to pressure from the coronavirus situation, the NZZ newspaper says.
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