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Related Experiment Videos

Single-dose versus multi-dose vaccine vials for immunization programmes in developing countries.

Paul K Drain1, Carib M Nelson, John S Lloyd

  • 1Program for Appropriate Technology in Health (PATH), 1455 NW Leary Way, Seattle, WA 98107, USA.

Bulletin of the World Health Organization
|February 6, 2004
PubMed
Summary

Comparing vaccine formats, single-dose vials offer improved safety and more vaccination opportunities, despite higher initial costs. Multi-dose vials are economical for cheaper vaccines but risk higher wastage, making single-dose formats ideal for expensive vaccines and safe injection practices.

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Area of Science:

  • Public Health
  • Health Economics
  • Vaccinology

Background:

  • High vaccine wastage and safety concerns necessitate alternative vaccine presentations beyond multi-dose vials.
  • Immunization programs in developing countries face challenges with vaccine storage, delivery, and injection safety.
  • The international health community seeks to optimize vaccine supply chains through innovative delivery formats.

Purpose of the Study:

  • To compare multi-dose vials and single-dose vaccine formats programmatically and economically for immunization services in developing countries.
  • To evaluate the trade-offs between cost, wastage, cold-chain requirements, and safety profiles of different vaccine presentations.
  • To identify optimal vaccine formats based on vaccine cost, cold-chain capacity, and injection safety considerations.

Main Methods:

Related Experiment Videos

  • Programmatic and economic comparison of multi-dose vials versus single-dose vaccine formats.
  • Analysis of factors including per-dose price, cold-chain capacity, wastage rates, vaccination opportunities, and injection safety.
  • Evaluation of prefilled auto-disable (AD) devices as a specific single-dose format.

Main Results:

  • Multi-dose vials generally have lower per-dose prices and require less cold-chain space.
  • Single-dose formats offer enhanced vaccine safety, increased vaccination opportunities, and reduced wastage, particularly for expensive vaccines.
  • Prefilled auto-disable (AD) devices combine vaccine and syringe for improved injection safety and convenience.

Conclusions:

  • Multi-dose vials are suitable for low-cost vaccines and resource-limited cold-chain settings.
  • Single-dose formats are preferable for high-cost vaccines and areas with unsafe injection practices.
  • Prefilled AD devices are advantageous for expanding outreach and ensuring injection safety, preventing needle reuse.