Delivette Castor, PhD

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Delivette Castor is Assistant Professor (in Medicine), Department of Medicine, Division of Infectious Diseases, the Columbia University Medical Center. She is an epidemiologist who studies how to deliver public health innovations at scale by examining the unique and joint effects of biomedical, behavioral and structural factors that affect infectious diseases in priority populations in low- and middle-income country settings (LMICS), and in marginalized populations in the US. She joined the faculty of Columbia University Irving Medical Center (CUIMC) in November 2019. Prior, she led implementation research activities within the President’s Plan for AIDS Relief (PEPFAR) at two U.S government agencies; as Senior Epidemiologist and eventually, acting chief of Implementation Science branch, the office of HIV/AIDS (OHA), United States Agency for International Development (USAID); and Senior Epidemiologist in the Office of Research and Science, the office of the Global AIDS coordinator, Department of State (S/GAC). She worked within PEPFAR-supported programs to design, implement and evaluate comprehensive HIV interventions, introduce and scale-up novel prevention technologies. These often involved designing large community trials utilizing quantitative and qualitative methods, stakeholder engagement, capacity building, analysis, dissemination and utilization of study findings through coordination with policymakers and program-planners. Her HIV research involves intersecting areas of interest such as women’s and reproductive health, health disparities, mental health, nutrition, cervical cancer and other emerging infections (i.e., SARS-CoV-2).

To contact Dr. Castor, you can e-mail her at

Academic Appointments

  • Assistant Professor of Medical Sciences (in Medicine and in Epidemiology)

Credentials & Experience

Education & Training

  • BSc, 1997 University of the Virgin Islands
  • MPH, 2000 University of Alabama at Birmingham
  • PhD, 2006 Columbia University
  • MSc, 2009 The Rockefeller University



Automated Visual Evaluation for Cervical Cancer Screening in HIV Positive Women
Federal Gov [PI: Denny/Kuhn]
Period: 04/01/20-03/31/25

Monitoring and Evaluation Framework for Hepatitis B and C: Endhelp2020
Period: 04/2020-09/2020

Automated Digital Imaging for Cervical Cancer Screening
Federal Gov [PI:Kuhn]
Period: 07/01/20-06/30/25

Preparing for Ring Opportunities through Market Introduction Support and Knowledge Exchange [PROMISE]
Federal Gov
Period: 08/2020-05/2021

Selected Publications

  • Phillips A, Cambiano V, Johnson L, Nakagawa F, Homan N, Meyer-Rothe G, Rehle T, Tanser F, Moyo S, Shahmanesh M, Castor D, Russell E, Jamieson L, Bansi-Matharu L, Shroufi A, Barnabas R, Parikh U, Mellors J, Revill P. Potential Impact and Cost-Effectiveness of Condom-less-sex-concentrated PrEP in Kwazulu-Natal Accounting for Drug Resistance. J Infect Dis. 2019 Dec 18
  • Castor D, Kimmel AL, McFall A, Padian N, Yansaneh A, Wiant S, Sandison S, Holmes C, Lucas R, Stanton D, Goosby E, Kottiri B. Employing the Payback Framework to Access Implementation Science Research Utilization: Lessons from the USAID’s PEPFAR HIV/AIDS Implementation Science Awards. J Acquir Immune Defic Syndr. 2019 Dec;82 Suppl 3:S348-S356
  • Castor D, Meyer K, Allen SA. The only way is up: Priorities for Implementing Long-Acting ARVs for HIV Prevention and Treatment. Curr Opinions in HIV/AIDS Curr Opin HIV AIDS. 2020 Jan;15(1):73-80.
  • Lyons CE, Coly K, Bowring AL, Liestman B, Diouf D, Wong VJ, Turpin G, Castor D, Dieng P, Olawore O, Geibel S, Ketende S, Ndour C, Thiam S, Touré-Kane C, Baral SD. Use and Acceptability of HIV Self-Testing Among First-Time Testers at Risk for HIV in Senegal. AIDS Behav. 2019 Jun 13
  • Twahirwa Rwema JO, Lyons CE, Ketende S, Bowring AL, Rao A, Comins C, Diouf D, Drame FM, Liestman B, Coly K, Ndour C, Turpin G, Mboup S, Toure-Kane C, Castor D, Leye-Diouf N, Diop-Ndiaye H, Baral S. Characterizing the Influence of Structural Determinants of HIV Risk on Consistent Condom Use Among Female Sex Workers in Senegal. J Acquir Immune Defic Syndr. 2019 May 1;81(1):63-71
  • Dunbar MS, Kripke K, Haberer J, Castor D, Dalal S, Mukoma W, Mullick S, Patel P, Reed J, Subedar H, Were D, Warren M, Torjesen K. Understanding and measuring uptake and coverage of oral pre-exposure prophylaxis delivery among adolescent girls and young women in sub-Saharan Africa. Sex Health. 2018 Nov 9
  • Lyons CE, Ketende S, Diouf D, Drame FM, Liestman B, Coly K, Ndour C, Turpin G, Mboup S, Diop K, Toure-Kane C, Castor D, Leye-Diouf N, Baral S. Potential Impact of Integrated Stigma Mitigation Interventions in Improving HIV/AIDS Service Delivery and Uptake for Key Populations in Senegal. J Acquir Immune Defic Syndr. 2017 Jan 1;74 Suppl 1:S52-S59.
  • Mishra S, Boily MC, Schwartz S, Beyrer C, Blanchard JF, Moses S, Castor D, Phaswana-Mafuya N, Vickerman P, Drame F, Alary M, Baral SD. Data and methods to characterize the role of sex work and to inform sex work programs in generalized HIV epidemics: evidence to challenge assumptions. Ann Epidemiol. 2016 Aug;26(8):557-569.
  • Kripke K, Opuni M, Schnure M, Sgaier S, Castor D, Reed J, Njeuhmeli E, Stover J. Age Targeting of Voluntary Medical Male Circumcision Programs Using the Decision Makers' Program Planning Toolkit (DMPPT) 2.0. PLoS One. 2016 Jul 13;11(7)
  • Kripke K, Okello V, Maziya V, Benzerga W, Mirira M, Gold E, Schnure M, Sgaier S, Castor D, Reed J, Njeuhmeli E. Voluntary Medical Male Circumcision for HIV Prevention in Swaziland: Modeling the Impact of Age Targeting. PLoS One. 2016 Jul 13;11(7)
  • Kripke K, Chimbwandira F, Mwandi Z, Matchere F, Schnure M, Reed J, Castor D, Sgaier S, Njeuhmeli E. Voluntary Medical Male Circumcision for HIV Prevention in Malawi: Modeling the Impact and Cost of Focusing the Program by Client Age and Geography. PLoS One. 2016 Jul 13;11(7)
  • Kripke K, Perales N, Lija J, Fimbo B, Mlanga E, Mahler H, Juma JM, Baingana E, Plotkin M, Kakiziba D, Semini I, Castor D, Njeuhmeli E. The Economic and Epidemiological Impact of Focusing Voluntary Medical Male Circumcision for HIV Prevention on Specific Age Groups and Regions in Tanzania. PLoS One. 2016 Jul 13;11(7)
  • Kripke K, Vazzano A, Kirungi W, Musinguzi J, Opio A, Ssempebwa R, Nakawunde S, Kyobutungi S, Akao JN, Magala F, Mwidu G, Castor D, Njeuhmeli E. Modeling the Impact of Uganda's Safe Male Circumcision Program: Implications for Age and Regional Targeting. PLoS One. 2016 Jul 13;11(7)
  • Kripke K, Chen PA, Vazzano A, Thambinayagam A, Pillay Y, Loykissoonlal D, Bonnecwe C, Barron P, Kiwango E, Castor D, Njeuhmeli E. Cost and Impact of Voluntary Medical Male Circumcision in South Africa: Focusing the Program on Specific Age Groups and Provinces. PLoS One. 2016 Jul 13;11(7)
  • Kerridge BT, Castor D, Tran P, Barnhart M, Pickering R. Association between intoxication at last sexual intercourse and unprotected sex among men and women in Uganda. J Infect Dev Ctries. 2014 Nov 13;8(11):1461-9