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Published 22:29 IST, September 23rd 2020

Study of first single-shot vaccine begins in US

Johnson & Johnson is beginning a huge final study to try to prove if a single-dose COVID-19 vaccine can protect against the virus.

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Johnson & Johnson is beginning a huge final study to try to prove if a single-dose COVID-19 vaccine can protect against the virus.
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22:29 IST, September 23rd 2020