Dr. Alfred Saah is Executive Director of Scientific Affairs for Vaccines within Global Medical and Scientific Affairs at MSD. His responsibilities within Scientific Affairs for Vaccines include managing the MSD Investigator-Initiated Studies Program, Scientific Input Engagements and related global Congress activities. As an internist, epidemiologist and infectious diseases clinician, he joined MSD in 1997 after careers at the National Institute of Allergy and Infectious Diseases, National Institutes of Health, and Johns Hopkins University.