The dearth of storage units for Covid vaccine endangering 3 billion people

The latest development at the forefront for coronavirus seems to be the obstacle in cold-chain storage units for the Covid vaccine highlighting the ever-growing burden and struggles for the poor.
A figure of 3 billion people out of the total population of 7.8 billion live in zones where there are almost no ways of controlling temperature which is a prerequisite for the storage of vaccines for the campaign for immunizing people to work.
The process of repetitive sterile-refrigeration is imminent for the vaccine to be considered safe and viable which is a tough call for even the richest of countries to maintain -70 degrees in Celsius.
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News source: LIVEMINT
Update by Tithi Banerjee
