Bracing to meet a killer: aid workers prep for Ebola in Geneva Standing inside a white tent pitched behind the headquarters of the International Federation of Red Cross and Red Crescent Societies, around 30 doctors, nurses, lab technicians and water and sanitation workers are gathered for a crash-course in how to safely deal with one of the deadliest viruses known to man - Ebola. They come from around the world and most of them work for the Red Cross or the Doctors Without Borders (MSF) charity. IMAGES AND SOUNDBITES