coronavirus vaccine effectiveness

Recent epidemiological research has found the Delta (B.1.617.2) variant to be 40 per cent more contagious than the Alpha variant Reduced vaccine efficiency and high infectiousness during the pre-symptomatic phase are leading to rapid transmission of the coronavirus’ Delta variant, several studies have found. Recent epidemiological research has found the Delta (B.1.617.2) variant to be … Read more

University of Oxford and Office for National Statistics researchers conducted the study, the results of which were published in a pre-print The effectiveness of Oxford-AstraZeneca and Pfizer-BioNTech vaccines against the Delta variant of the coronavirus wanes over time despite offering considerable protection against the strain, a UK study has found. University of Oxford and Office … Read more