Epidemiology, Others


Last updated: 2021 Sep 30
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In Scotland, Delta VOC was mostly found in younger, wealthier people. When compared to those with the Alpha VOC, the probability of COVID-19 hospital admission was increased in those with the Delta VOC, with the risk of admission being especially high in those with five or more relevant comorbidities. In those with the Delta VOC, the OxfordAstraZeneca vaccination appeared to be less efficient than the PfizerBioNTech vaccine in preventing SARS-CoV-2 infection.
thelancet.com
Date of Publishing 2021 Jun 14
Title SARS-CoV-2 Delta VOC in Scotland: demographics, risk of hospital admission, and vaccine effectiveness
Date of Entry 2021 Sep 30


The disease outcomes of patients infected with B.1.1.7, B.1.351, and B.1.617.2 with those with wild-type strains were compared. B.1.617.2 infection was associated with lower PCR Ct values and longer viral shedding. B.1.617.2 infection was associated with higher chances of oxygen requirement, ICU admission or death. There were a number of vaccine breakthrough infections in the cohort, all patients infected with VOC, post-vaccination suffered from mild disease.
europepmc.org
Date of Publishing 2021 Jun 07
Title Clinical and Virological Features of SARS-CoV-2 Variants of Concern: A Retrospective Cohort Study Comparing B.1.1.7 (Alpha), B.1.315 (Beta), and B.1.617.2 (Delta)
Date of Entry 2021 Sep 13