About Us

The Sylvie Ratelle STD/HIV Prevention Training Center (PTC) is a project of the Division of STD Prevention, Massachusetts Department of Public Health. We are part of the National Network of STD Clinical Prevention Training Centers, which are funded by the Centers for Disease Control and Prevention (CDC). In conjunction with regional medical schools and health departments the PTC offers courses for health care providers in the diagnosis, treatment, and management of sexually transmitted diseases and the prevention of Human Immunodeficiency Virus (HIV).

These offerings meet a need for effective training in STD clinical services in support of disease prevention, and are the primary source of post-graduate STD continuing education for health care professionals in Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, and Florida.

Clinical and on-line course offerings are designed for both new and experienced health care professionals (physicians, infectious disease fellows, nurse practitioners, physician assistants, certified nurse midwives, and nurses) in public and private practice who examine and treat individuals at risk for STDs/HIV. 

The Ratelle PTC offers courses taught by skilled and experienced faculty from regional Schools of Medicine and State Health Departments, including the following:

Boston University
Brown University
Harvard University
University of Connecticut
University of Massachusetts
Yale University 

Connecticut Department of Public Health

Massachusetts Department of Public Health

Florida Department of Health              


Information can be requested by emailing the PTC at ptc.boston@state.ma.us or by calling (617) 983-6945.



About Sylvie Ratelle

About Sylvie Ratelle

Sylvie Ratelle, MD, MPH was the founding director of the STD/HIV Prevention Training Center of New England (PTC). As the longtime Medical Director of the MDPH Division of STD Prevention and HIV/AIDS Surveillance, Dr. Ratelle established the training center in 1995 to provide New England clinicians with state-of-the-art training in STD diagnosis, management and prevention. Over the years she worked tirelessly to establish the PTC of New England as a regional and national leader in the field of clinician training. She spearheaded the PTC’s expansion to include clinical training sites in Boston, Hartford, and Providence, and worked collaboratively with numerous organizations to develop innovative teaching tools, workshops and training curricula for the busy clinician. Dr. Ratelle was a staunch advocate for STD/HIV prevention, an astute mentor, a giving and caring colleague, and a great friend.

In 2006, Dr. Ratelle passed away after a long and courageous battle with breast cancer at the age of 51. One of her enduring legacies is the Sylvie Ratelle STD/HIV Prevention Training Center, providing opportunities for countless clinicians to benefit from local and national experts in the field of STD/HIV prevention training.

Meet Our Staff

Katherine Hsu, MD, MPH Katherine Hsu, MD, MPH

Katherine Hsu, MD, MPH is the Medical Director for the Division of STD Prevention & HIV/AIDS Surveillance, Massachusetts Department of Public Health, and the Director of the New England STD/HIV Prevention Training Center. She is also an Associate Professor of Pediatrics and Attending Physician in Pediatric Infectious Diseases at Boston University Medical Center. Dr. Hsu graduated from Brown University School of Medicine in 1995, completed pediatric residency at Columbia-Presbyterian Medical Center in 1998, and completed fellowship in Pediatric Infectious Diseases at the Boston University Medical Center in 2001. She also completed a second STD Prevention Fellowship jointly sponsored by the Association of Teachers of Preventive Medicine and the Centers for Disease Control and Prevention in 2003, and received her Masters in Public Health in Epidemiology from the Boston University School of Public Health in 2005. She was a recipient of the Massachusetts Infectious Disease Society's Edward H. Kass Award for Clinical Excellence During Fellowship in 2001. She is board certified in the areas of Pediatrics and Pediatrics Infectious Diseases, and is a Fellow of American Academy of Pediatrics. She is also a certified colposcopist through the American Society for Colposcopy and Cervical Pathology's Colposcopy Mentorship Program. Dr. Hsu's research interests include vaccine-preventable diseases and prevention of sexually transmitted infections, and she has published in various scientific journals, including Vaccine, Pediatric Infectious Disease Journal, and Archives of Pediatrics and Adolescent Medicine.

Janine Dyer, MPH Janine Dyer, MPH

Janine Dyer, MPH is the Deputy Director of the Ratelle PTC. She received a bachelor's degree from Boston College and a Master of Public Health degree from the University of Massachusetts at Amherst with concentrations in community health education and health policy and management. Before joining the PTC in 2002, she worked for many years with Boston's immigrant Haitian community, coordinating community-level HIV prevention and education programs.

Barbara Gray Barbara Gray

Barbara Gray has worked for the Department of Public Health for over twenty years in many diverse roles. She joined the PTC staff in 2011 and is a Program Coordinator.

Sadie Phillips-Scott Sadie Phillips-Scott

Sadie Phillips-Scott has worked for the Department of Public Health for over twenty years. She joined the Ratelle PTC in July 2011 as the Administrative Assistant.