Jennifer Griffin, PhD, MPH, is an epidemiologist with over a decade of experience leading large multi-country studies in vaccine safety, maternal and neonatal outcomes, and infectious disease epidemiology.

As Lead Epidemiologist for the Global Vaccine Data Network (GVDN), she coordinates international collaborations across Africa, Asia, and the Americas focused on strengthening vaccine safety surveillance and generating background rates of adverse events of special interest. Her work emphasizes rigorous study design, high-quality data systems, and the interpretation of complex safety evidence for regulators, policymakers, and immunization programs, with particular focus on populations often underrepresented in pre-licensure research, including pregnant women and populations in low- and middle-income countries.