There are people living in the same house as someone with Ebola who don't get sick... it is really very difficult to spread
– Virologist Dr Ben Neumann
The government's chief scientist has warned that Britain must protect itself from the Ebola virus which is now known to have killed almost 700 people in Africa. It follows new guidelines to doctors in England to watch for signs of the disease.
So how big is the threat to the UK? We speak to virologist Dr Ben Neuman from the University of Reading, who's convinced there's no need for panic over the disease.