How Does Ebola Spread? The Outbreak Of The Deadly Disease Mapped (INFOGRAPHIC)

The death toll from the Ebola outbreak in West Africa has reached 670 with governments around the world on alert anticipating its potential spread.

Two people have been tested for the disease in the UK and vigilance is high to what has been described by Foreign Secretary, Philip Hammond, as a "very serious threat".

UK Border staff have said they do not feel prepared for the possibility of people with Ebola coming to the country from abroad.

The doctor who led Sierra Leone's fight against Ebola died of the disease on Tuesday and many other aid workers are seriously ill.

SEE ALSO: We May Have Already Discovered The Cure For Ebola

Infographic by Jan Diehm for The Huffington Post.

Earlier versions of this graphic were published in March and June.

See more infographics here.