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Papers In Vaccine Journal Examine Overchilling Of Vaccines, Stock-Outs

The Economist: Managing supplies of vaccines is a huge problem
“…[A] vial of vaccine that has been accidentally frozen, and then thawed, may lose its potency as surely as one that has been warmed up. A study published this week in Vaccine, by Celina Hanson of UNICEF and her colleagues, suggests that the overchilling of vaccines is alarmingly common. … Another problem of vaccine distribution, ‘stock-outs,’ is also the subject of a paper in this week’s Vaccine. … In an average year, a third of [194] countries had at least one vaccine out of stock at national level for a month or longer…” (3/30).

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