vaccine vial monitor


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vaccine vial monitor

A heat-sensitive indicator on the outside of a vaccine bottle that changes color when the vaccine has been exposed to excessively high temperatures, making it unsafe for patient use.
See also: monitor
References in periodicals archive ?
Smith proposed the concept to develop low-cost individual vaccine vial temperature indicators that provide a unique signal after a defined cumulative heat exposure consistent with WHO PQS specifications for Vaccine Vial Monitors AND to also provide an indication of brief exposure to high temperatures that could cause vaccines to lose potency and be rendered ineffective.
Another notable PATH success story is the vaccine vial monitor, a tiny sticker put on vials of vaccine that changes colour when exposed to heat.
Furthermore, a special heat-sensitive label known as a vaccine vial monitor (VVM) was introduced on OPV vials in 1996.

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