‘I had leprosy many years ago and lost my toes and some fingers. Now the rats eat away what remains of my toes at night – I don’t have the strength to kick them away.’ For many leprosy seems like a disease from the past, a left-over illness from medieval times redolent of warning bells and chants of 'unclean'. Yet on this bleak plane near Juba town, the new capital of Southern Sudan, Margarita’s plight is not an unusual one.