Massachusetts December 2, 2020 3:49 pm Mass. Company Builds Ultra-Cold Freezers to Store COVID Vaccine Pfizer’s coronavirus vaccine must be stored at extremely cold temperatures, a logistical problem a Waltham company is working to solve. US & World Videos 3:41 Cool air to linger over Boston into the weekend 3:17 Cooling back down, weekend turns wet in Boston 2:44 Karen Read trial Day 4: Jurors to visit crime scene 3:02 Dry and cooler in our region, with temps in the mid-50s 3:20 Weather forecast: Highs in the 50s
