Christina Banks is a health economics researcher and Technical Advisor at ThinkWell, supporting the immunization economics portfolio. The focus of her work is the cost of delivering vaccines, currently the costing of COVID-19 vaccine delivery in low- and middle- income countries. Previously, she has conducted costing analyses on integrated immunization campaigns in Nigeria and Sierra Leone, and contributed to estimating the impact of the COVID-19 pandemic on immunization service delivery costs. Christina holds a Master of Public Health (MPH) from Imperial College London.