Why does Ebola virus keep coming back?

Ebola virus is a nightmare for Africa. For nearly 50 years, this virus has claimed the lives of more than 15,000 people in the continent. Recently, 80 people have already died in Congo due to infection with this virus.

In many other countries, the infection is also emerging. Vaccines for several strains of Ebola have been developed, yet it is not possible to stop this deadly virus.

What is this Ebola virus? How does it spread? Let’s find out in today's Star Explains.