Pfizer says COVID-19 vaccine 90% effective in Phase 3 trial

Monday 09, 2020 05:48 IST Pfizer says COVID-19 vaccine 90% effective in Phase 3 trial Protection in patients was achieved seven days after the second of two doses, and 28 days after the first, according to preliminary findings. READ MORE>> You are receiving this email because you are a user of thehindu.com. If you do not wish to receive such emails unsubscribe here. To ensure you continue to receive emails from The Hindu in your inbox, please add breakingnewsletter.th@newsalert.thehindu.com to your contacts.