International pledges of deployments and aid for Africa's Ebola-hit regions have not yet had any impact on the epidemic, a major medical charity says. Christopher Stokes of Medecins Sans Frontieres (MSF) said the disease was still out of control. He said it was "ridiculous" that volunteers working for his charity were bearing the brunt of care in the worst-affected countries. The disease has killed about 4,500 people so far, mostly in West Africa. MSF runs about 700 out of the 1,000 beds available in treatment facilities Liberia, Sierra Leone and Guinea.