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Sweden makes COVID vaccines in powder form

Al Jazeera, 06 Jun 2021
Swedish scientists are making COVID-19 vaccines in powder form in an effort to overcome delivery and storage problems.
They have developed an air-drying process that is far cheaper and easier than freeze-drying.
It is hoped the process will help developing countries to produce their own vaccine stocks.
Al Jazeera's Paul Rhys reports.

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