Continuing coverage: The World Health Organization is convening a panel of medical ethicists next week to discuss whether experimental vaccines and drugs that have not been approved or tested in humans should be used to treat the Ebola outbreak in West Africa. “My concern is that if you give the treatment to people in late stage disease, and if the person dies, then everybody is going to blame whatever was given,” Thomas Geisbert, professor of microbiology and immunology at UTMB, told TIME this week. “If the person survives, you may never know if the product worked because it was somebody who was going to survive anyway, without the drug.”