Boston University MD/PhD graduate (2010) and Assistant Professor in the UC San Diego Division of Infectious Diseases and Global Public Health, Dr. Jennifer M. Dan consults on transplant and oncology infectious disease at the 4168 Front Street Hillcrest medical offices. Dan completed internal medicine residency and infectious disease fellowship at UC San Diego and now holds a joint Clinical Associate appointment at the La Jolla Institute for Immunology, where her bench work on SARS-CoV-2 T cell and B cell memory published in Science became a reference point for durable vaccine immunity, while clinical coverage runs alongside fellow UCSD ID physician Dr. Michele L. Ritter, MD. Her clinical focus covers post-transplant opportunistic infection, cytomegalovirus viremia management, Epstein-Barr virus PTLD risk monitoring, bacteriophage therapy for multidrug-resistant pneumonia in lung transplant recipients, and febrile neutropenia workup for hematology and oncology patients. Research funding includes an NIH K08 Clinical Investigator Award supporting her work on the immunology of recurrent Group A Streptococcus tonsillitis in children susceptible to repeat infection. Advanced chest and abdominal imaging for immunocompromised workup feeds from her clinic into Imaging Healthcare Specialists - Hillcrest, with high-resolution CT protocols tuned for invasive pulmonary aspergillosis and pneumocystis differentiation. The most complex case profile is multidrug-resistant gram-negative pneumonia in a post-lung-transplant recipient, where Dan has deployed adjunctive bacteriophage therapy combined with prolonged colistin or cefiderocol courses under the UCSD Center for Innovative Phage Applications and Therapeutics protocol.