Vaccine vial monitors: Transforming the way we can deliver vaccines
Vaccine vial monitor, or VVM, is a heat-sensitive indicator printed on vial labels to indicate whether or not the vaccine is damaged in overexposure to heat.
Over the next 10 years, VVM will allow health workers to recognize and replace more than 230 million doses of unusable vaccines, and to deliver 1.5 billion more vaccine doses to remote locations. It will also save vaccines worth about US$ 5 million every year by preventing dumping of vials that are suspected to be damaged.
This photo essay shows how VVM works and how it is helping to increase the effectiveness and coverage of national immunization programmes.
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