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Core Faculty

  • Associate Professor Term; Project Director, Connecticut AIDS Education & Training Center; Director, Yale Infectious Disease Ambulatory Services, Infectious Diseases; Medical Director Nathan Smith Clinic, Infectious Diseases; Program Director, HIV Primary Care Training Track, Internal Medicine

    Research Interests
    • HIV Infections
    • Patient Outcome Assessment
    Dr. Lydia Aoun Barakat is the director of Yale Infectious Disease Ambulatory ServicesAs the Medical Director of the Nathan Smith Clinic at Yale New Haven Hospital, she oversees the HIV care of over 900 patients living with HIV/AIDS. Dr. Barakat’s career is highlighted by her commitment for managing HIV disease. She has received and contributed in multiple HRSA and CDC grants that are dedicated to the mission of serving the people living with HIV/AIDS and require a long term vision in accomplishing a high standard quality of care as well as a focus on outcome measures. Dr. Barakat is a leader in Quality Improvement in HIV care and serves as member in several local and national committees dedicated to improving HIV Quality. Her work has been recognized nationally by the presentation of the “Senior Leadership Award” for her role in building an HIV Quality infrastructure for patient care. She is passionate about teaching residents and students, mentoring them for presentations in national meetings and completing clinical research projects. Dr. Barakat has been honored to receive “Teacher of the year award” on four occasions during the last decade. She also serves as the Program Director for the HIV Training Track in the Yale Internal Medicine Primary Care Residency Program that she established and implemented since 2011. Dr. Barakat is also an investigator in the Yale AIDS clinical trials and has ongoing research projects on HIV and aging. Dr. Barakat has taken every opportunity to expand her knowledge and expertise in the fields of Medicine and Infectious Diseases. She enjoys the investigative process the results in the diagnosis in challenging infectious disease cases; whether diagnosing a “Fatal Inhalation Anthrax in a 94-year-old Connecticut Woman” published in JAMA, or the patient who almost lost his vision due to Cat Scratch Disease as reported in “Diagnosis: Vision Quest” in the New York Times magazine. Dr. Barakat is dedicated to her role as clinician educator at Yale where caring for patients and mentoring students and residents are paramount.
  • Assistant Professor of Infectious Diseases

    I have completed my internal medicine residency training at the NYP/Weill-Cornell, New York, and fellowship in Infectious diseases/HIV at the Massachusetts General Hospital and Brigham and Women's Hospital, Harvard University, Boston. Prior to that, I did a PhD at the Kirby Institute/University of New South Wales (Australia) in epidemiological studies in HIV/AIDS. Some of my notable work has focused on impact of BMI and weight gain from antiretroviral therapy on diabetes and cardiovascular outcomes; dual-drug therapies for HIV/AIDS; inflammatory markers and clinical outcomes in HIV; and implementation research on improving HIV treatment outcomes in Asia-Pacific, amongst others. Clinically, I'm interested in HIV primary care, cases of HIV with complex resistance history, COVID-19 therapeutics, and general infectious diseases.
  • Associate Professor of Medicine (Infectious Diseases); GME Director, Educator Development, Department of Medicine; Associate, Teaching and Learning Center; Director, Internal Medicine Clerkship, Internal Medicine Clerkship; Associate Chair for Education and Academic Affairs, Internal Medicine

    Research Interests
    • Chlamydia Infections
    • Gonorrhea
    • Sexually Transmitted Diseases
    • Syphilis
    • Global Health
    • Sexually Transmitted Diseases, Bacterial
    • Vaginosis, Bacterial
    • Infectious Disease Medicine
    Dr. Dunne has spent the majority of her career focusing on the care of patients with sexually transmitted diseases and on the education of clinicians who also care for these patients. She is a founding and core faculty member for the Yale Primary Care HIV Training Track.Dr Dunne also enjoys medical education and faculty development. She has been the Inpatient Internal Medicine Clerkship Director since 2011 and and spends a good portion of her time on educator development projects for GME and UME.
  • Professor of Medicine (General Medicine); Director of Student Assessment, Teaching and Learning Center; Director of clinical skills assessment, MD Program

    Research Interests
    • Clinical Competence
    • Competency-Based Education
    • Curriculum
    • Education, Graduate
    • HIV
    • Internal Medicine
    • Learning
    • Outcome Assessment, Health Care
    • Evidence-Based Practice
    Dr. Green received his medical degree from the University of North Carolina School of Medicine and Master of Science in Health Policy and Management from Harvard School of Public Health. His post graduate training included an internship, residency, and fellowship in general medicine at the Beth Israel Hospital in Boston and Harvard Medical School. Dr Green is Professor of Medicine and Director of Student Assessment at the Teaching and Learning Center at the Yale School of Medicine.  He serves on the steering committee of the AAMC Core EPAs for Entering Residency national pilot. He previously served on the ACGME / ABIM milestones task force and the SGIM reforming internal medicine residency training task force. Dr. Green's research interests include assessment, entrustable professional activities, retrieval-based learning, and evidence-based medicine.  He received the regional and national awards for scholarship in medical education from the Society of General Internal Medicine and was selected as a Kimball Scholar at the American Board of Internal Medicine. Dr Green cares for persons living with HIV infection and supervises medical residents at the Nathan Smith Clinic.
  • Associate Professor of Medicine (AIDS); Affiliated Faculty, Yale Institute for Global Health

    Research Interests
    • Hepatitis C
    • HIV Infections
    • Coronavirus
    • Disk Diffusion Antimicrobial Tests
    • Health Care
    I am an Associate Professor of Medicine, in the clinician-educator track and Director of the HIV Clinical Trials program of the Yale AIDS Program, Section of Infectious Diseases of the Yale School of Medicine. My clinical responsibilities include educating and training medical students, residents and infectious diseases fellows in various capacities in inpatient and outpatient settings; and through structured course work and other teaching sessions. As a faculty of the HIV training track of the Yale-Internal Medicine primary care program and for over 6 years as a faculty of the Human Resources for Health program in Rwanda, I  have extensive experience with curriculum development, structuring of residency training programs, and mentoring residents and faculty. In Rwanda specifically, I have and continue to mentor medical residents and junior faculty in quality improvement and clinical research projects that are locally relevant and addressing important infectious diseases-related problems (particularly HIV/AIDS and antimicrobial resistance). Furthermore, I have facilitated meaningful educational and research collaborations between faculty and trainees across institutions. As the program director of World Bank and HRSA-funded efforts supporting the Liberia College of Physicians and surgeons (LCPS)–run Internal medicine residency training program, I have overseen the selection and deployment of faculty to Liberia, and am responsible for educational programs and activities aimed at strengthening the residency training program. Overall, my expertise and collective experiences to date have positioned me to design and run successful projects around capacity building in low-resource settings including developing and implementing innovative and robust medical training and research programs for faculty, fellows, residents and students.For 5 years now, I have been the Director of the Yale AIDS Program HIV clinical trials program, and a principal investigator on numerous pharmacokinetic, phase 2 and 3 safety and efficacy trials of novel antiviral compounds (HIV). More, recently, given the alarming rate of new infections among men who have sex with men (MSM), I have focused on HIV prevention trials including being a co-principal investigator on a Yale CIRA funded project, which has supported the formation of a cohort of men who have sex with men, who are at high risk for HIV and are engaged in HIV PrEP services in order to study the impact of substance use on retention in care and adherence to PrEP. I am also a lead investigator on the international DISCOVER trial evaluating TAF/FTC vs TDF/FTC for HIV prevention among MSM and transgender women.In response to the COVID pandemic, I am Yale principal investigator on multiple investigational therapeutic  and preventative clinical trials for COVID-19 including remdesivir (now FDA approved), leronlimab and remdesivir and tocilizumab combination therapy as well as the Pfizer/BioNTech and GSK/Sanofi COVID-19 Vaccine trials.
  • Associate Professor of Medicine (AIDS)

    Research Interests
    • Acquired Immunodeficiency Syndrome
    • Global Health
    • Infectious Disease Medicine
    Dr. Villanueva is Director of the HIV/AIDS Program and Associate Professor of Medicine at Yale University School of Medicine. She obtained her undergraduate degree at Harvard University and MD at Washington University. She completed Internal Medicine Residency training at Duke University and subspecialty fellowship training in Infectious Diseases at Yale.After fellowship, she left academia to work at Waterbury Hospital, a community hospital, where she was Chief of Infectious Diseases. During this time, she established the Ryan White-funded HIV clinic which worked closely with community based AIDS organizations. Her experience in promoting collaborations became the basis for subsequent research interests and her recruitment back to Yale.A major focus of her academic work has been on developing HIV educational curricula for medical providers including Yale house staff and community providers throughout CT. She also serves as the Principal Investigator for the New Haven Ryan White HIV Continuum, a collaboration between different clinics and community organizations which promotes service coordination to improve quality of care for HIV patients, particularly those that are underserved. Her research interests focus on optimizing models of care that capitalize on partnerships between the medical establishment and community support.