Reuters - Pfizer Inc with its partner BioNTech SE and Moderna Inc have released test data showing its Covid-19 vaccines are 95% effective at preventing the disease , while AstraZeneca Plc announced this week that its vaccine could be up to 90%.
Reuters - Pfizer Inc with its partner BioNTech SE and Moderna Inc have released test data showing its Covid-19 vaccines are 95% effective at preventing the disease , while AstraZeneca Plc announced this week that its vaccine could be up to 90%.