nprnews_____ = ||| lubuntu at wor2|||Why Does Pfizer’s COVID-19 Vaccine Need To Be Kept Colder Than Antarctica?||| kickerpage = |||no kicker pagenpr for NPRNEWS||| summarynpr = |||One of the two leading vaccine candidates requires deep, deep freezing. Here’s how communities are working to solve for this and how the new Moderna vaccine could help.