i703ZZpt_TZ4AFRICA – At 3:30 a.m. in the world’s biggest Ebola treatment center, Daniel Lucey found the outbreak reduced to its essentials: patients lying on mattresses on the floor and vomiting in the dark, visible only by the wavering flashlight beam of a single volunteer doctor.  “I don’t see a light at the end of the tunnel,” said Lucey, a physician and professor from Georgetown University who is halfway through a five-week tour in Liberia with Medecins Sans Frontieres, the medical charity known in English as Doctors Without Borders. “The epidemic is still getting worse,” he said by phone between shifts. That’s an increasingly urgent challenge for MSF and the global health community. As fear spreads in the U.S. over transmission of the virus to two nurses in a modern Dallas hospital, the main fight against the outbreak is still being waged by volunteers like Lucey half a world away. More