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Sierra Petrosky is an experienced Global Program Manager at VillageReach, responsible for managing Laboratory Sample Transport programs across 15 countries in sub-Saharan Africa, with a focus on enhancing specimen quality and reducing turnaround times. Previous roles include Global Technical Team Associate at VillageReach, where Sierra coordinated a Strategic Training Executive Program and co-created Supply Chain Resilience tools, and Global Health Program Manager at Bloodworks Northwest, managing grant-funded initiatives to improve blood transfusion access globally. Additionally, Sierra served as a Rural Community Health Advisor with the Peace Corps in Benin, addressing health issues affecting women and children, and held roles in counseling and nursing earlier in the career. Sierra holds a Master's degree in Public Health with a focus on Maternal & Child Health from the University of South Florida and a Bachelor's degree in Health Sciences, Biology from Northern Arizona University.