(CNN) -- The deadly Ebola virus outbreak in West Africa has hit "unprecedented" proportions, according to relief workers on the ground.
"The epidemic is out of control," Dr. Bart Janssens, director of operations for Doctors Without Borders, said in a statement.
There have been 567 cases and 350 deaths since the epidemic began in March, according to the latest World Health Organization figures.
Ebola virus outbreaks are usually confined to remote areas, making it easier to contain. But this outbreak is different; patients have been identified in 60 locations in Guinea, Sierra Leone and Liberia.
Officials believe the wide footprint of this outbreak is partly because of the close proximity between the jungle where the virus was first identified and cities such as Conakry. The capital in Guinea has a population of 2 million and an international airport.
Photos: Ebola outbreak in West Africa Photos: Ebola outbreak in West Africa
Inside Guinea's Ebola crisis
People are traveling without realizing they're carrying the deadly virus. It can take between two and 21 days for someone to feel sick after they've been exposed.
This is really bad news hopefully they'll be able to contain it eventually before it gets even more out of hand and that the death toll doesn't get so much higher either.
People are traveling without realizing they're carrying the deadly virus. It can take between two and 21 days for someone to feel sick after they've been exposed.
hopefully they'll be able to contain it eventually before it gets even more out of hand and that the death toll doesn't get so much higher either. 
