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Vaccine vial monitors (VVMs) are small stickers that adhere to vaccine vials and change color as the vaccine is exposed to heat, letting health workers know whether the vaccine can be safely used for immunization. This fact sheet answers the most frequently asked questions regarding VVMs.

Corporate author(s): PATH, World Health Organization

Publication date: January 2011

Available materials

English

Vaccine Vial Monitors: FAQs

275 KB PDF

Hard copies are not available.

Some digital files may be saved at low resolutions to conserve file size. Versions with higher quality may be available; see the contact information below to enquire.

Related regions: Global

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Contact: PATH Publications
Email: publications@path.org
Mailing address: PATH, PO Box 900922, Seattle, WA 98109 USA