Coronavirus: call for Hong Kong Covid-19 survivors to donate plasma, which tests show kills infection

The Hong Kong Red Cross has appealed to recovered Covid-19 patients in the city to donate blood plasma to help those still sick with the disease, saying it can dramatically improve their condition.Since the Red Cross Blood Transfusion Service started collecting the plasma – the straw-coloured, liquid part of blood – about two weeks ago, only three packs of blood have been donated, by three recovered patients.Plasma from two of the three packs had already been given to patients via transfusion,…

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