When a freezer that was used to store the Moderna Covid-19 vaccine at a Northern California hospital broke, officials soon realized they only had about two hours to administer the more than 800 doses that were inside.
원문출처 : https://www.cnn.com/2021/01/06/us/california-broken-freezer-vaccines-trnd/index.html
원문출처 : https://www.cnn.com/2021/01/06/us/california-broken-freezer-vaccines-trnd/index.html