Use Alarms and Monitoring to Prevent Vaccine Spoilage

The push to vaccinate Americans for Covid-19 is highlighting a potential weak link in the supply chain: refrigerators and freezers. The Moderna and Pfizer vaccines approved for emergency use in the U.S. both require cold storage, and at least two hospitals have reported vaccine freezer failures, including the Boston VA where an unplugged freezer spoiled 1,900 vaccine doses.
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