Immunization, Vaccines and Biologicals

Service delivery

Mom and baby in waiting room

What does it take for a life-saving vaccine to reach a child, adolescent or adult?

Many components must come together for effective and efficient service delivery -- detailed planning, skilled managers and vaccinators, continuous supplies and logistics, costing assessments and communication and advocacy of the benefits of vaccination.

WHO is working with partners and Member States to improve access to immunization services for all communities. Provided here are resources and guidance to help ensure valuable and reliable vaccine service delivery.

Planning to reach every child

Vaccine supply and handling

  • WHO guidance note: Vaccine diluents, revision 2015 (English and French)
    A vaccine diluent is the liquid mixed with a lyophilized (freeze-dried) vaccine in order to reconstitute the lyophilized vaccine and provide the final vaccine for administration. A vaccine diluent may be sensitive to heat or freezing, and may require transportation and storage in the cold chain. This guidance note outlines the proper handling and use of vaccine diluent, including, but not limited to, critical steps for reconstituting vaccines safely.

Click here for more information on immunization supply chain and logistics

Immunization Safety

Training and supervision

Data collection and monitoring

Demand and acceptance

  • Partnering with the Community
    Training module describing how to work closely with the community to understand their needs, and how to successfully engage community representatives to ensure involvement and participation in immunization service delivery.
  • Addressing vaccine hesitancy
    Resources for countries on assessing and addressing vaccine hesitancy

Last update: June 2018