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Managing the Vaccine Vial Monitor in Kenya. Colour lithograph by Ministry of Health, ca. 2000.
The V.V.M. was manufactured by PATH in 1996: 'The vaccine vial monitor is a small sticker, no bigger than a dime, that adheres to the vaccine vial and changes color as the vaccine is exposed to heat. The color of the sticker tells health workers whether the vaccine is bad or can be safely used for immunization' (Source: http://www.path.org/projects/vaccine_vial_monitor.php )
Manage your vaccines effectively. Vaccine Vial Monitor (V.V.M.) does it for you ...
Ministry of Health Division of Vaccines & Immunization ca. 2000 28/07/2011 UK UkLW Transcription from the item
Wellcome Library no. 755355i