The UK Foreign and Commonwealth Office says all travel to Sierra Leone, Guinea and Liberia should be avoided – unless essential, due to the Ebola outbreak reports BBC world News

British Airways has suspended flights to Sierra Leone and Liberia and other airlines are taking similar measures.

Such flight restrictions may make it increasingly hard for people working in these areas to leave, the FCO warns.

Meanwhile scientists have announced plans to trial an Ebola vaccine on UK volunteers this September.