Geography
The Geography of Vaccine Cold Chains in Low-Resource Settings
Quick fact
In some low-resource regions, the 'cold chain' accounts for up to 80% of the total cost of vaccination programs, and yet it is the most fragile link: a single power outage can destroy thousands of doses.
Why this is interesting
A vaccine that sits in the sun for a few hours is as useless as one that is never delivered. Yet in many parts of the world, getting that vaccine to a remote village door is a race against heat, distance, and crumbling infrastructure.