Background: As delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-
CoV-2) prevailed in the current coronavirus disease 2019 (COVID-19) pandemic, its clinical …

Abstract The Delta (B. 1.617. 2) variant was the predominant UK circulating SARS-CoV-2
strain between May and December 2021. How Delta infection compares with previous …

Background The emerging SARS-CoV-2 variant of concern (VOC) B. 1.6. 17.2 (Delta)
quickly displaced the B. 1.1. 7 (Alpha) and is associated with increases in COVID-19 cases …

We are sharing the results of our study which retrospectively looked at the impact of SARS-
CoV-2 delta variant amid coronavirus disease 2019 (COVID-19) ongoing pandemic. Severe …

Background: Severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) Delta variant
(B. 1.617. 2) has been responsible for the current increase in Coronavirus disease 2019 …

Background This study aims to identify the causative strain of SARS-CoV-2 in a cluster of
vaccine breakthroughs. Vaccine breakthrough by a highly transmissible SARS-CoV-2 strain …

Background Infection with SARS-CoV-2 has been shown to be highly protective against
reinfection and symptomatic disease. However, effectiveness against the highly …

Abstract The SARS-CoV-2 Delta variant has evolved as the dominant strain of the current
pandemic. Studies have shown that this variant has increased infectivity/viral load, and …

Importance The Delta variant is now the predominant circulating SARS-CoV-2 strain
worldwide. Severity of illness in persons infected with the SARS-CoV-2 Delta variant …

Background B. 1.1. 7 (alpha) and B. 1.617. 2 (delta) variants of concern for SARS-CoV-2
have been reported to have differential infectivity and pathogenicity. Difference in recovery …