Its responsibilities include:

  • mobilising resources to fund programmes;
  • coordinating programme approvals and disbursements;
  • developing policy and implementing strategic initiatives;
  • monitoring and evaluation;
  • legal and financial management;
  • and administration for the Gavi Alliance Board and Committees.

Dr Seth Berkley, a medical doctor specialising in infectious disease epidemiology, became Gavi CEO in August 2011. 


Secretariat leadership

November 12, 2019

Dr Seth Berkley, Gavi CEO

July 20, 2022

David Marlow, Gavi COO

December 2, 2019

Aurélia Nguyen, Gavi CPSO

December 2, 2019

Pascal Barollier

Managing Director, Public Engagement & Information Services

December 2, 2019

Assietou Sylla Diouf

Chief Financial Officer (CFO)

June 3, 2022

Lucy Elliott

Managing Director, Audit & Investigations

December 16, 2019

Thabani Maphosa

Managing Director, Country Programmes Delivery

December 2, 2019

Marie-Ange Saraka-Yao

Managing Director, Resource Mobilisation, Private Sector Partnerships & Innovative Finance

July 1, 2022

Dr Derrick Sim

Acting Managing Director, Office of the COVAX Facility

February 17, 2023

Brenda Killen

Director, Governance

February 17, 2023

Jelena Madir

Chief Legal Officer and General Counsel

Last updated: 17 Feb 2023

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