Dr. Operskalski is Director of Clinical Research at the MCA Center and has over 25 years experience co-directing or managing complex multi-center investigations of factors that influence HIV and hepatitis B and C disease occurrence and outcome. Since joining MCA she has coordinated the numerous clinical research studies carried out by the program, including studies of the Pediatric AIDS Clinical Trials Group (PACTG), which is now the International Maternal Pediatric Adolescent Center Trials (IMPAACT) Group, other NIH-funded studies, and MCA's own investigator-initiated studies. The studies include therapeutic trials for HIV and other infectious diseases, vaccine studies, and observational studies of long-term outcomes of disease and therapy. She has participated in the development of collaborative activities related to maternal child and adolescent infectious disease prevention and treatment, including successful grant proposals to the national Health Resources and Services Administration to expand MCA’s coordinated clinical services and access to research for women, infants, children, and youth. Dr. Operskalski's research focus has been the epidemiology of HIV, HCV, and other transfusion-transmitted infections; specifically, factors that influence progression from infection to disease (including the effect of interactions of HIV, HTLV, HBV, HCV, EBV, CMV on progression and transmission of each) and factors that influence transmission by blood transfusion, and heterosexual and household contact. She was Principal Investigator for a clinic-based HIV vaccine preparedness (VPS) pilot study, sponsored by the PACTG, to investigate whether network analysis can be used to establish clinic-based cohorts of adolescents for HIV vaccine preparedness activities and vaccine trials. The VPS brought together a multi-disciplinary team of investigators from the KSOM Departments of Pediatrics and Preventive Medicine, as well as from Johns Hopkins University School of Public Health, and the Desmond Tutu HIV Centre in Cape Town and the Perinatal HIV Research Unit in Johannesburg, South Africa. These investigators have extensive experience and expertise in public health, epidemiology, prevention, social network mapping, and clinical research.