- Scientists see downsides to top COVID-19 vaccines from Russia, China Reuters
- Large trials for the Oxford COVID-19 vaccine begin in the U.S. NBC News
- AstraZeneca Starts U.S. Final-Stage Trial of Covid-19 Vaccine Bloomberg
- Immunity concern over some COVID-19 vaccines Reuters
- Covid vaccine rush could make pandemic worse, say scientists The Guardian
- View Full Coverage on Google News
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