Ebola survivor Dr. Kent Brantly has called the outbreak 'a fire straight from the pit of hell,' at a US Senate Panel, and has urged the Obama administration to step up the 'sluggish' response to the crisis.

"Many, including one of the Senators today, used the analogy of a fire burning out of control to describe this unprecedented Ebola outbreak. Indeed it is a fire. It is a fire straight from the pit of hell. We cannot fool ourselves into thinking that the vast moat of the Atlantic Ocean will protect us from the flames of this fire," he said.