Health
Pfizer covid-19 vaccine will need a gigantic new network of freezers
We have a covid-19 vaccine that works. But can we keep it cold enough to get it to enough people?
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We have a covid-19 vaccine that works. But can we keep it cold enough to get it to enough people?
Millions of people may be experiencing long-term symptoms after recovering from covid-19 – possibly because the virus is hiding from the immune system