Moderna’s coronavirus vaccine is 94.5% effective, according to company data

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• Live updates: The US added 1 million Covid-19 cases in just 6 days
• Pfizer says early analysis shows its Covid-19 vaccine is more than 90% effective

• Live updates: The US added 1 million Covid-19 cases in just 6 days
• Pfizer says early analysis shows its Covid-19 vaccine is more than 90% effective