U.S. President Donald Trump¡¯s administration has called on European nations to follow Washington¡¯s lead and impose travel restrictions on people who have recently been in Central African countries affected by the Ebola outbreak, in hopes ?of avoiding the spread of the virus during the soccer World Cup, sources and officials said on Tuesday.

The ?U.S. on ?June 1 issued a demarche ¡ª a formal diplomatic statement of concern ¡ª urging European ?countries to implement travel restrictions related to the outbreak, a European Union diplomat based in Africa and a second source familiar with the matter said. The diplomat said European Union states had not responded.

The U.S. Centers for ?Disease Control and Prevention last month issued an order barring noncitizens who have been in the Democratic Republic of Congo, Uganda ?or South Sudan in the previous 21 days from entering the U.S.