Keep cool and carry on: the fridge protecting vaccines from power outages

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  • A fridge designed for vaccines and medicines has “harnessed the power of nature” to keep its contents cold, even with intermittent access to electricity
  • Vaccines are often temperature sensitive, with inoculations for diseases including hepatitis, typhoid and polio sensitive to both high and low temperatures
  • When electricity is switched off, the warm water rises while the ice begins to melt, keeping the water at a constant temperature. It can keep the contents chilled for up to four weeks without power