Dr. Wojcicki is an anthropologist and epidemiologist with an interest in early life risk factors for the development of obesity in high-risk populations. Specifically, she is interested in maternal exposures in pregnancy and early-life feeding decisions that can increase risk for obesity by age five. Additionally, Dr. Wojcicki is also interested in how pediatric under-nutrition can contribute to HIV progression and infection in sub-Saharan African populations. She is a collaborator on a long-term cohort study in Lusaka, Zambia.