Latest Breaking News On - புதன்கிழமை போரிஸ் ஜான்சன் - Page 1 : comparemela.com

B.1.617.2, B.1.1.7 ? Some studies, including lab-based work and analysis of real-world data, have suggested current Covid vaccines are somewhat less effective against the Delta variant than the Alpha variant. According to Technical Briefing 13 from Public Health England, an analysis involving 7,673 symptomatic cases identified as B.1.1.7 and 2,934 cases identified as B.1.617.2 revealed that after a single dose of the Pfizer/BioNTech or Oxford/AstraZeneca Covid vaccines “there was a 17% absolute reduction in vaccine effectiveness against symptomatic disease with B.1.617.2 compared to B.1.1.7, but only a modest reduction in vaccine effectiveness after two doses”. The take-home message, says Dunn-Walters, is that “vaccines protect, and a second dose is very important against the Delta variant”.

City ofUnited kingdomAdam finnOxford astrazenca covidDeborah dunn waltersBoris johnsonBristol universityUniversity of surreyPublic health englandCommittee on vaccinationWednesday boris johnsonTechnical briefingAstrazenca covidJoint committeeநகரம் ஆஃப்ஒன்றுபட்டது கிஂக்டம்