Meet the Vaccine Center Team

Clinical Staff

Clinical Staff for Center for Vaccine Development


Karla Mosby RN, CCRC, Clinical Nurse Manager
Karla Mosby RN, CCRC, Clinical Nurse Manager

Karla Mosby is the Clinical Nurse Manager for the Center for Vaccine Development. She received her Diploma in Nursing in 1977 and certification as a Clinical Research Coordinator by the Academy of Clinical Research Professionals in 1999. Karla's nursing experience includes Surgery, Orthopedics, Emergency Room, Ophthalmology and Family Medicine. Her management experience includes office management in private physician practices and nursing supervisor in a Family Medicine Residency Program. She has been with the Center for Vaccine Development since 1997, working as Research Coordinator, Recruitment Coordinator, and Clinical Nurse Manager since 2011.


Sabrina Di Piazza, RN, BSN

Sabrina DiPiazza is a Clinical Research Coordinator for the Vaccine Center. She received her Bachelor of Science Degree in Nursing in 1997. She has extensive experience in pediatrics. She also worked as a Wellness Coach and Case Manager for a health benefits company. She joined the Vaccine Center team in 2011 and continues to work as a Nurse Coordinator.


Kathleen Koehler, RN, CCRC

Kathleen Koehler is a Certified Clinical Research Coordinator. She earned her Diploma in Nursing in 1973 and certification as a Clinical Research Coordinator by the Academy of Clinical Research Professionals in 2001. Kathleen’s nursing background includes: pediatrics, intravenous therapy, dialysis, apheresis, and endoscopy. Starting in 1997, she worked in a variety of areas as a clinical research coordinator: including gastroenterology, hepatology, and infectious diseases vaccine research.


Tom Pacatte, RN. BSN, MSW, CCRC

Tom Pacatte is a Certified Clinical Research Coordinator. He earned his Bachelor of Nursing in 1981 and certification as Clinical Research Coordinator by the Academy of Clinical Research Professionals in 1996. Tom’s experience in nursing includes pediatric intensive care, coordinating and counseling in a hemophilia treatment program, and family therapy. Prior to his nursing career, he earned a Bachelor degree in Anthropology in 1972, volunteered in the Peace Corps for 2 years, and earned a Masters of Social Work in 1977. Tom has been with the Center for Vaccine Development since 1994 and has extensive experience as a Clinical Research Coordinator with vaccine trials, including 15 years of research for HIV vaccines.

Nicole Purcell Nicole Purcell

Nicole Purcell is the laboratory technician for the Vaccine Center. Nicole has been with the Division of Infectious Diseases since 2003, and is responsible for processing and shipping study samples and safety labs. She also helps with front desk duties and and assists with Quality Management reviews.


Joan Siegner, RN, BSN,MA,CCRC

Joan Siegner is a Clinical Nurse Coordinator. She earned her Bachelor of Science in Nursing degree in 1977 and her Master of Arts in Health Services Management in 1983. Her nursing experience includes work in medical-surgical nursing, pediatrics, recovery room, and pain management nursing and she was a nursing instructor at the Community College level. Joan earned her certification as a Clinical Research Coordinator by the Academy of Clinical Research Professionals in 2005. Starting in 2001, Joan worked in a variety of areas as a clinical research coordinator: including cardiology, hepatology, and vaccine research.


Jan Tennant, M.P.H., B.S.N., R.N.

Jan Tennant is a Clinical Nurse Coordinator. She earned her Associate Degree in Nursing in 1976, her Bachelor Degree in Nursing in 1997, and her Master Degree in Public Health in 2001. Jan has extensive experience in pediatric nursing: including the ambulatory care unit and emergency room. She was hired as the first clinical nurse coordinator for the Vaccine Center in 1989 and has over 20 years of clinical research coordinator experience.


Maria Woodson, MA

Maria Woodson is a Medical Assistant for the Vaccine Center. She received her certificate as a Medical Assistant in 2003 and joined the university in 2010.Maria Woodson, MA She is the primary coordinator of front desk activities: including welcoming volunteers, answering the phone, and confirming and managing the flow of appointments. Maria also assists with laboratory sample collection and processing.

 

 

 

 

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