Euro Surveill. 2021 Mar;26(10). doi: 10.2807/1560-7917.ES.2021.26.10.2100130.
ABSTRACT
We show that the SARS-CoV-2 B.1.1.7 lineage is highly disseminated in Portugal, with the odds of B.1.1.7 proportion increasing at an estimated 89% (95% confidence interval: 83-95%) per week until week 3 2021. RT-PCR spike gene target late detection (SGTL) can constitute a useful surrogate to track B.1.1.7 spread, besides the spike gene target failure (SGTF) proxy. SGTL/SGTF samples were associated with statistically significant higher viral loads, but not with substantial shift in age distribution compared to non-SGTF/SGTL cases.
PMID:33706862 | DOI:10.2807/1560-7917.ES.2021.26.10.2100130
