Page 19 - பல்கலைக்கழகம் ஆஃப் சிகாகோ மருந்து News Today : Breaking News, Live Updates & Top Stories | Vimarsana

July 12, 2021 Pfizer says its vaccine loses effectiveness over time and is seeking approval for booster shots. U.S. regulators aren t convinced they re needed yet. SHOW TRANSCRIPT Pfizer is trying to convince federal authorities to green-light a COVID booster shot.  The COVID-19 vaccine maker began the week by briefing the FDA on the need for a third shot to protect against new variants.  Pfizer cites data out of Israel showing a decline in its vaccine effectiveness from more than 90% down to 64% as the Delta variant spreads. But for now, Israel is only offering a third dose to its most vulnerable citizens. Ramping up production would take months. 

United statesWhite houseDistrict of columbiaAnthony fauciJerome adamsJen psakiStephen schrantzUniversity of chicago medicineAssociated pressChicago medicineGeneral jerome adamsஒன்றுபட்டது மாநிலங்களில்வெள்ளை வீடுமாவட்டம் ஆஃப் கொலம்பியாஜெரோம் ஆடம்ஸ்பல்கலைக்கழகம் ஆஃப் சிகாகோ மருந்து