He is an internationally recognized expert on HIV pathogenesis and treatment. He is also now leading a large program focused on the pathogenesis and treatment of Long COVID.

Dr. Deeks has published over 700 peer-review articles, editorials and invited reviews on these and related topics. He is the contact principal investigator of DARE (the Delaney AIDS Research Enterprise), an NIH-funded international collaboratory aimed at developing therapeutic interventions to cure HIV infection. He recently directed the amfAR Institute for HIV Cure Research. In early 2020, he leveraged his HIV research program to construct the “Long-term Impact of Infection with Novel Coronavirus (LIINC)” cohort, which is now supporting dozens of studies addressing the impact of SARS-CoV-2 on health.

Dr. Deeks is a member of the American Society for Clinical Investigation (ASCI) and Association of American Physicians (AAP). He serves on the scientific advisory board for Science Translational Medicine and is the editor-in-chief of Current Opinion in HIV and AIDS. He is listed annually as one of the world's most cited scientists for the past several years. In 2022, he received the Lifetime Achievement in Mentoring Award from UCSF.