Biography - Merceditas S. Villanueva, MD

Merceditas S. Villanueva, MD, director of the Yale Medicine AIDS Care Program, is an infectious disease specialist with a clinical focus on HIV and AIDS. She cares for patients in the hospital who are sick with various infections, as well as those with complications of HIV. She also treats patients in the Nathan Smith Clinic, where she primarily treats HIV.

As a clinician, Dr. Villanueva believes in getting to know each patient as an individual. “I think that way you really make a difference in people's lives,” she says. “Sometimes we think it has to be this huge thing that you do for people. But it's the little things that you notice that will make a difference—the ability to hear them, the ability to link them to the right resources if they need it.”  People living with HIV have different needs that require resources beyond strict medical care, she says. “A team approach including community-based partners is essential.”

Dr. Villanueva was drawn to the field of infectious diseases after traveling to different countries with her father, who worked for the United Nations. She saw many people who struggled with diseases that called for medical care within the context of global public health concerns. “I always felt that it would be great to make an impact in those communities,” Dr. Villanueva says. The field of HIV pulled all those interests together.

AIDS was a uniformly fatal disease when Dr. Villanueva was a medical student in the early 1980s. In the last two to three decades, increasingly better treatments have made HIV a chronic disease. “The message that we gave patients in the early days was, ‘Let's try to make your remaining days as comfortable as possible.’ But that message has totally changed. HIV is not curable, but as long as people take their medications, it’s controllable, so people living with HIV can lead, more or less, normal lives.” As such, doctors and researchers are turning their attention to people with HIV who are surviving into their 50s and 60s.

Dr. Villanueva is an associate professor of Medicine at Yale School of Medicine. Before coming to Yale, she founded the Ryan White-funded HIV clinic at Waterbury Hospital, and she now serves as the principal investigator for the New Haven Ryan White HIV Continuum, a collaboration between clinics and community organizations that promotes service coordination to improve quality of care for HIV patients, particularly those who are medically underserved. She works closely with community-based AIDS organizations and providers throughout Connecticut, and her research focuses on optimizing models of care that capitalize on partnerships between medical providers, public health professionals and community partners.  

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