The European air traffic control agency, Eurocontrol, says about 75 percent of scheduled flights will operate Wednesday. All travel restrictions have been lifted in Britain and Germany.

欧盟的民航控制机构说，欧洲大约75%的航班将于星期三恢复，英国和德国的所有旅行限制都已解除。

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America, the European Union, China and India are advising citizens against all but essential travel to Mexico, where the virus seems to have originated.

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In the overall Travel and Tourism Competitiveness Index, Europe was the top region with the first five positions all held by European countries.

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All the host cities are in the European region of the country and Putin has promised that fans will be able to travel on public transport for free during the event.

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