World health organization

Vaccine vial monitors: Transforming the way we can deliver vaccines

WHO/Umit Kartoglu

It can take up to a year between vaccine production and its use. Vaccines often need to survive long storage time, and thousands of kilometres of travel into some of the most remote communities on earth. During the long journey, they are at constant risk of damage due to heat. VVM helps health workers to determine whether the vaccines are still usable.

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