Preventing Accidental Freezing in the Cold Chain: An Introduction to Cold Chain Freezing and Some Options for Reducing It

This document is part of a series that describes the serious risk of freezing vaccines and provides tools to reduce freezing in the cold chain. The materials contain current WHO-recommended freeze-prevention strategies targeted toward all levels of storage and transport of vaccines.

Publication date: January 2003

Preventing Accidental Freezing in the Cold Chain: An Introduction to Cold Chain Freezing and Some Options for Reducing It

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