A medical team from Doctors without Borders heads into an Ebola treatment center in Sierra Leone.<br/> <br />For as many as 90 percent of those who contract it, Ebola is a death sentence.<br/> <br />More than 700 people in four African countries, have died in the latest outbreak.<br/> <br />There is no known cure for the disease. It's caused by a virus which spreads from person to person through bodily contact.<br/> <br />For health care professionals, like Max Gertler from Doctors without Borders, treatment of Ebola presents significant challenges.<br/> <br />(SOUNDBITE) (English) MEDECINS SANS FRONTIÈRES DOCTOR MAX GERTLER [WHAT MAKES EBOLA SO DIFFICULT TO TREAT] SAYING:<br/> <br />"First of all the fear. Which one has to overcome. And there is of course the risk to get infected yourself."<br/> <br />For leaders of those nations affected, the crisis has triggered a national emergency. They're now meeting in Guinea to craft a response.<br/> <br />Although the World Health Organization says that for now, the outbreak is mov
