This Swedish startup is making powdered vaccines that don’t need to be kept cold

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advertisementWhen Pfizer’s new COVID-19 vaccine is approved for use—which might happen as soon as December—it’s not going to show up at your local pharmacy. That’s partly because it needs to stay incredibly cold to work: It must be stored at minus 94 degrees Fahrenheit, far colder than is possible in an ordinary freezer. In the developing world, even vaccines that can be stored in refrigerators present a huge logistical challenge. A Swedish startup is working on an alternative: technology that can convert any vaccine to a powdered version that can survive without refrigeration.advertisementadvertisement [Source Images: courtesy Ziccum]“Essentially, we separate the water from the active ingredients, and we transport them side by side,” says Göran Conradson, CEO of Ziccum, the startup that created the new process. “Then, just prior to vaccination, you add the water again, and it goes immediately into solution.” In the factory that the company plans to build, it will send vaccines through a nebulizer inside a machine, creating tiny droplets that flow down a column. Dry air flowing outside the column brings the vapor upward so that the non-water portion of the vaccine can be collected in a filter.The …

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