Exotic diseases in the caravan Possible Ebola in Migrant Caravans Heading Toward U.S. | Someones Bones: http://www.someonesbones.com/blog/possible-ebola-in-migrant-caravans-heading-toward-u-s/#.W-DRf595Jfo.twitter Possible Ebola in the caravan, 50% fatality rate. Two cited cases of hemorrhagic fever, extremely contagious.