Nathaniel Segaren


After medical school at Cambridge University, Nat completed his residency in Pediatrics at Guy’s and St. Thomas’ Hospitals in London. He is a member of the Royal College of Pediatrics and Child Health. As a Fulbright Scholar he completed an MBA and an MPH at Johns Hopkins. He helped to initiate the Caris Foundation’s activities in Haiti which have grown from supporting one hospital to over 125 clinical sites in every province of the country. His research interest is focused on efforts to reduce Mother To Child transmission of HIV and to improving the outcomes of children and families living with the disease. 


Tessa Lewis


Tessa grew up in the UK and graduated with a BA hons. in French and Italian from Leicester University. After living in France and Italy, she returned home to complete a Masters in PR. In 2007 she moved to Haiti as Program Director of the Caris Foundation where she has overseen the development of the organization’s activities. Tessa helped guide Caris from a two-person team to an organization of over 150 staff and seven regional offices. Tessa launched Kids Clubs and Mothers Clubs that provide invaluable education and psychological support to over 700 adolescents and 2000 mothers living with HIV. She developed curriculums that support these vulnerable groups to live positively and to realize their potential. 


Sylvie Boisson


Sylvie was awarded a BSc in Biology from McGill University (Canada), and a Masters in Cellular Biology and Physiology from Pierre et Marie Curie University (France), both with Honors. Her thesis examined the role of calcineurin in synaptic plasticity. After obtaining her medical doctorate at McGill, Sylvie completed her pediatric residency at Jackson Memorial Hospital in Florida. She then participated in the successful launching of a pediatric residency program in Haiti. In November 2013, Sylvie started working for the Caris Foundation as Director of Child Health, which enables her to pursue her goal of improving care for vulnerable children. 

Elektra Carras-Terzian


Elektra was born and raised in New York City to French-Greek parents. After studying Pre-medical sciences at Johns Hopkins University, she landed a position at Columbia University working for the HIV Vaccine Trials Network. She then decided to pursue an MPH in Epidemiology at the Mailman School. Elektra joined the Caris Foundation in 2012 based in Cap Haitien and has since become the manager for the North operations and a specialist in Monitoring and Evaluation. Her position has enabled her to manage a team of health professionals, data systems, and master Creole. She is also managing a Haitian traditional music band, Mizikannou.

Tessa Jean-Pierre


After obtaining her Bachelors of Science in Biology in Florida in 2009, Tessa came to Haiti. Following the 2010 earthquake, she was involved in emergency relief and recovery programs for Red Cross. In 2012, Tessa traveled to London where she obtained a Masters of Science in Public Health at the London School of Hygiene and Tropical Medicine. In 2014, she joined Caris Foundation International as OVC Program Manager where she manages the national schooling program for HIV infected and affected adolescents, sets up professional training program activities for beneficiaries as well as implementing and managing health messages in social groups.

Erlyne Simeon


Erlyne is a licensed nurse who specialized in community health. She has experience working in the domaine of HIV and joined Caris in 2009 when the team had only five employees. She joined as a technical coordinator and as the team grew larger she became the team coordinator managing the activities for the nurse-led teams. Erlyne was influential in starting kids clubs and malnutrition programs. In 2014 she became the quality control manager of Caris’s operations throughout Haiti. She coordinates all activities of all seven offices and ensures that the standard of work is consistent. Erlyne often travels to the offices to perform refresher trainings and evaluations. 

Gislhaine Benoit Sterlin


Gislhaine Benoit Sterlin is a nurse specialising in community health and has worked for Caris since 2010. Starting as a nurse coordinator, Gislhaine showed great strength in working with the health agents and ensuring they visit the most in need benificiaries. Gislhaine is now the community manager and supervises the activities of 25 health agents around Port au Prince. She also runs the nutritional support program for children suffering from malnutrition and plays a key role in running and supervising kids and mothers clubs. Gislhaine¹s dream is to see a day where we find a cure for HIV and for children to never inherit this illness.