The Big COVID Vaccine Challenge Is Keeping Them Super-Cold
Just like a fresh piece of fish, vaccines are highly perishable products and must be kept at very cold, specific temperatures. The majority of COVID-19 vaccines under development—like the Moderna and Pfizer vaccines—are new RNA-based vaccines. If they get too warm or too cold they spoil. And, just like fish, a spoiled vaccine must be thrown away. So how do companies and public health agencies get vaccines to the people who need them?