WHO is seeking interests to carry out the development/publication of WHO Information Sheets on Observed Rates of Vaccine Reactions with new COVID-19 vaccines and other newly WHO emergency use listed or prequalified vaccines.   The Contractor is expected to present the outcomes of the research on observed rates of vaccine reactions with new COVID-19 vaccines and solicit feedback from the Global Advisory Committee on Vaccine Safety (GACVS) after presentations. The Contractor is also expected to support the WHO Pharmacovigilance team (PVG) to coordinate the discussions and write meeting reports.   The Contractor is expected to support the WHO (Pharmacovigilance Team) to develop/test AI supported tools for risk communication and causality assessment of serious Adverse Events Following Immunization (AEFI). The testing of the tools can include technical training, piloting of the tools including AI supported AEFI causality assessment software and the AI assisted AEFI causality assessment tool once they are developed and ready for piloting.