Announcement 31 October 2025:  - The submission deadline for submission of proposals was extended from 04/11/2025, 15:00 hours, Geneva (CET) time to 11/11/2025, 15:00  hours, Geneva (CET) time.   - To address a few minor issues regarding the RFP documentation, revision versions are now available of the RFP document and the Appendix 2 - PRSEAH Assessment, under 'Documents' tab.   This RFP was published on 15 October 2025   Dear Bidder, You are invited to submit a proposal for the above subject Request for Proposal for World Health Organization, Department of Polio Eradication Programme in accordance with the attached RFP documents: Please click on "Express Interest", "View Documents", and then, on the "RFP Documents" tab:   Request for proposal (main tender document containing all relevant annexes that are not described below) Appendix 1 - UNGM user guide Appendix 2 - PRSEAH Assessment Appendix 3 – Sustainability Questionnaire Annex 5 – Rate Card   The dates related to Intention to Bid, Questions and Submission of Proposals are detailed in the attached RFP document unless otherwise indicated above.   IMPORTANT NOTE: Interested vendors must respond to this Request for Proposal (RFP) using the WHO electronic tendering portal, via the UNGM portal. In order to access the full WHO RFP details, request clarifications on the RFP, and submit a vendor response to a tender using the system, vendors need to be registered with Basic Level as a WHO vendor at the UNGM portal and be logged into UNGM.   For guidance on how to register on UNGM and submit responses to WHO tenders in the WHO electronic tendering portal, please refer to: - the attached UNGM guide: Instructions on how to register with WHO and access WHO tenders - the user guide and other resources available at: http://www.who.int/about/finances-accountability/procurement/en/