Vaccine vial monitor (VVM)
21 June 2021
| Technical document
Overview
VVMs are small indicators that adhere to vaccine vials and change colour as the vaccine is exposed to cumulative heat, letting health workers know whether the vaccine has exceeded a pre-set limit beyond which the vaccine should not be used.
WHO Team
Essential Programme on Immunization (EPI),
Immunization, Vaccines and Biologicals (IVB),
WHO Headquarters (HQ)
Editors
WHO
Number of pages
3