The Network for Education and Support in Immunisation (NESI) was officially launched on 1 September 2002.

NESI builds upon the former International Network for Eastern and Southern Africa on Hepatitis B Vaccination, a collaboration established in Africa in 1999 (local universities, ministries of health, and the University of Antwerp) that focused on the introduction of new vaccines. NESI is utilising this network’s extensive experience in delivering training in Africa and expanding the focus to deliver additional activities, such as capacity building for the Expanded Programme on Immunisation (EPI), curriculum revision, and the development of training documents.