The Ebola virus may be getting closer to Americans than ever, but don't expect big American drug companies to come to the rescue. It's unclear how much profit it would take to get Big Pharma interested in finding an Ebola cure, but right now such a project could well be a money-loser, they said. “You’re just talking a small number of cases,” said Thomas Geisbert, a professor at UTMB whose lab is researching possible treatments for Ebola. Geisbert noted that the number of Ebola patients right now pales in comparison to the number of people suffering from diseases like malaria and cancer. “Who are they going to sell it to?” he said of an Ebola treatment.