Dr. Hogan began his 30 year scientific career studying host-pathogen interactions during his graduate studies, which focused on immune responses to viral infection in teleosts. After receiving his doctoral degree, he joined the laboratory of Dr. David Woodland at St. Jude Children’s Research Hospital, where his research focused on cell-mediated immune responses mediated by bacterial superantigens. After moving with Dr. Woodland to the Trudeau Institute, he received an individual National Research Service Award from NIH-NIAID to study T cell responses against respiratory virus pathogens (e.g. influenza and paramyxoviruses). Upon joining the United States Army Medical Research Institute of Infectious Diseases (USAMRIID) at Fort Detrick, Maryland as a Principal Investigator, Dr. Hogan engaged in the development of vaccines for protection against both Marburg and Ebola viruses in mouse and nonhuman primate (NHP) models of disease under BSL-4 containment. After joining the Southern Research Institute, he continued studying immune responses against Ebola virus proteins and initiated animal model development, small molecule antiviral screening, and vaccines against for SARS-Coronavirus (SARS-CoV-1). Dr. Hogan then joined the faculty at the University of Georgia where he continued to examine immune responses, vaccines, and therapeutic strategies against viral and bacterial pathogens including SARS-CoV-1 and 2, influenza virus, and Burkholderia mallei and pseudomallei with Dr. Eric Lafontaine under BSL-2 and BSL-3 containment.