Covid Vaccine: Which Countries Are In Line For Moderna And Pfizer Vaccine? Know Where India Stands

<strong>New Delhi:</strong> The US-based pharma companies Moderna and Pfizer have announced that their vaccine candidate has shown over 90 percent effectiveness. While Moderna has said that it's 94.5 percent effective in preventing Covid-19, Pfizer Inc and German biotech company BioNTech BNT162b2, today announced their mRNA-based vaccine 90% effective in preventing the

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