A<unk>  (VVM) is a thermochromic label put on<unk> s containing<unk> s which gives a visual indication of whether the<unk>  has been kept at a temperature which preserves its potency. The labels were designed in response to the problem of delivering<unk> s to developing countries where the cold chain is difficult to preserve, and where formerly<unk> s were being rendered inactive and administered ineffectively due to their having been denatured by exposure to ambient temperature.
Vaccine vial monitor
Isolation tank
Safety syringe
EMRTS Cymru
Virus counter
FluTrackers
Death panel
Vaccine cooler