WHO-prequalified immunization products, and product information, offer product end-users many benefits, including:

• assurance that the products meet international standards for quality and safety and the evolving needs of national immunization programmes

• better value for money because evaluation of products for prequalification takes into account the need to minimize product maintenance and running costs

• comprehensive guidance and information on product performance, installation, use and maintenance: this website houses a one-stop-shop for product information.

Procurement of prequalified products helps ensure that national immunization programmes have potent, safe vaccines available at the point of use.

Prequalification outputs and information of interest to product users

The key sections of this website for product users ― including programme managers of the Expanded Programme for Immunization (EPI) and technicians ― who wish to use or who are already using WHO-prequalified products are:

• Benefits of WHO immunization devices prequalification ― what WHO immunization devices prequalification brings to its different stakeholders
• Catalogue of IMD-PQS prequalifed products ― extensive information on the different categories of immunization devices that WHO prequalifies, on those products that are prequalified, as well as category documentation, prequalification guidance for manufacturers and suppliers, and supporting information for users
• Recently-withdrawn products ― information about products that have recently lost prequalified status and that can no longer be procured by UN agencies
• Guidance on selecting appropriate products ― guidance and tools for exploring comparative performance figures and prices, and find products to meet the operational needs and challenges of EPI environments
• Procurement of prequalified products ― guidance on how to procure prequalified products
• Supporting information for product users ― product selection and assessment tools, volume and capacity calculator tools, study protocols, installation, use and maintenance manuals for prequalified products, relevant technical studies and other product end-user guidance
• Post-marketing monitoring ― collection of information and operational feedback about product performance in immunization operating environments
• Standards overview ― the standards revised, updated or improved on the basis of information provided by users and product manufacturers
• Product innovation ― how IMD-PQS and users contribute to improving the quality and reliability of immunization products
• Key contacts ― the key persons who can be contacted regarding different aspects of prequalification of immunization devices.