Cold chain strikes again: 1,900 doses of Moderna vaccine go poof in Boston after cleaner reportedly unplugged freezer

A Boston cleaner

A Boston cleaner is reported to have accidentally ruined 1,900 doses of Moderna Covid-19 vaccine by unplugging a freezer. It’s the latest case highlighting how logistical problems can seriously undermine immunization efforts.

The incident happened at the VA Boston Pharmacy in the Jamaica Plain neighborhood of Boston. Staff discovered on Tuesday that a freezer storing the vaccine failed overnight, compromising it, a spokesman for the VA Boston Healthcare System said on Thursday.

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