The outbreak of the deadly Ebola virus in West Africa is an extraordinary event and a public health risk to other states, the World Health Organisation (WHO) said.
All states with Ebola transmission should declare a national emergency but international trade and travel should not be stopped because of the outbreak, the health body said.
WHO added that the possible consequences of a further international spread of the virus was "particularly serious" due to the virulence of Ebola.
UK trials of a vaccine for the Ebola virus began today - but some experts complain that the response has been a long time coming.
A Swansea doctor who took leave to treat Ebola patients in Africa, is back on the wards after three weeks in isolation.
The first British case of Ebola in the outbreak in West Africa has been confirmed. So how would repatriation work are what are the risks?