cold chain

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An employee makes dry ice pellets at Capitol Carbonic, a dry ice factory in Baltimore in Nov. 2020. Dry ice helps keep COVID-19 vaccines cool during transport. Saul Loeb/AFP via Getty Images hide caption

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Saul Loeb/AFP via Getty Images

Goats and Soda

What Is A Cold Chain? And Why Do So Many Vaccines Need It?

February 24, 2021 • Many of the coronavirus vaccines like it cold. Really cold. Sub-zero cold. Why is this the case? And how is the world handling this frigid requirement?

How Do You Keep Vaccines Cool? Try Spacecraft Insulation

A camel gives a lift to the Arktek cooler, designed to give vaccines the cold comfort they need to remain effective. Courtesy of Gates Foundation hide caption

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Courtesy of Gates Foundation

Goats and Soda

How Do You Keep Vaccines Cool? Try Spacecraft Insulation

November 23, 2015 • Typically, if a vaccine is not kept cold, it doesn't work. And that's a big problem in hot spots. A new cooler seems to do the trick — without electricity!