Dr. Hong Van Tieu is an Assistant Professor in Clinical Medicine in the Division of Infectious Diseases at Columbia University, as well as an Associate Member in the Laboratory of Infectious Disease Prevention at the New York Blood Center. During fellowship at Columbia University, she studied immunologic markers to predict and diagnose tuberculosis-associated immune reconstitution inflammatory syndrome in HIV and TB co-infected adults in Thailand.

She served as a co-investigator of the New York City site for the HIV Prevention Trials Network (HPTN) 061 study to prevent HIV infection among Black men who have sex with men (MSM). She is a PI of a K01 career development award to study how sexual networks influence HIV risk among MSM in New York City. She is also involved in HIV vaccine studies with the Columbia University HIV Vaccine Trials Unit in collaboration with the New York Blood Center.