Warning over 'huge' Ebola risk

The nations worst affected by the Ebola outbreak have missed a key World Health Organisation (WHO) deadline to stop the spread of the virus.
In October the WHO called for 70% of those infected to be isolated and 70% of victims to be safely buried by December 1st.
The target was for Guinea, Sierra Leone and Liberia - but of the three only Guinea has met it and the other two countries are well behind.
Meanwhile, the head of the UN's Ebola mission, Tony Banbury, has warned there is still a "huge risk" of the virus spreading beyond West Africa to other parts of the world.