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The "cold chain" used by Dippin' Dots and COVID-19 vaccine

by Kai Ryssdal and Sean McHenry

Dec 17, 2020

The pelletized ice cream snack has to be shipped at extremely low temperatures. So does the Pfizer-BioNtech vaccine.

Dippin' Dots on display in New York in 2019.

Brian Ach/Getty Images

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