US President Donald Trump describes the move as a "breakthrough" but health experts say it needs further study.
You can stay up to date on coronavirus in your language at sbs.com.au/coronavirus
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A doctor holds a bag of blood plasma donated by a COVID-19 survivor Source: AAP
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By Matt Connellan
Source: SBS
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You can stay up to date on coronavirus in your language at sbs.com.au/coronavirus