- 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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