Harvard Medical School held a symposium on Ebola that drew several hundred attendees for presentations about efforts to develop vaccines and therapeutics. Jeffrey S. Flier, dean of the faculty of medicine at Harvard University and Caroline Shields Walker Professor of Medicine; John Mekalanos, head of the Department of Microbiology and Immunobiology and Adele Lehman Professor of Microbiology and Molecular Genetics; and Paul Farmer, Kolokotrones University Professor of Global Health and Social Medicine and head of the Department of Global Health and Social Medicine, are mentioned.