Category: Genome
Transmission of SARS-CoV-2 from asymptomatic and presymptomatic individuals in healthcare settings despite medical masks and eye protection
We describe 3 instances of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission despite medical masks and eye protection, including transmission despite the source person being masked, transmission despite the exposed person being masked, and transmission despite both parties being masked. More...
Delta vaccine breakthrough cases in Washington State quadruple in two weeks
This week’s update from Washington State showing vaccine breakthrough cases and which Sars-CoV-2 variant is causing them up to 18th August 2021. More...
Preprint: generation and transmission of recombinant SARS-CoV-2 viruses
We present evidence for multiple independent origins of recombinant SARS-CoV-2 viruses sampled from late 2020 and early 2021 in the United Kingdom. More...
280 cases of Delta variant with N501Y, some with E484K too
Delta + Alpha + Beta + Gamma recombinant variant found in Turkey. More...
USA: B.1.621 now at 10% of Covid-19 sequences in South Florida
Carlos Migoya, CEO of Jackson Health, revealed that now 10% of COVID-positive patients whose results are being sequenced at the University of Miami’s pathology lab have a strain [B.1.621] that originated out of Colombia. More...
Preprint: Characterization of the emerging B.1.621 variant of interest of SARS-CoV-2
In this study, we reported the emergence and spread of the novel B.1.621 lineage of SARS-CoV-2, a new VOI with the insertion 146N and several amino acid substitutions in the Spike protein (T95I,Y144T, Y145S, R346K, E484K, N501Y and P681H). More...
USA: Washington State Vaccine Breakthroughs by Variant up to 4th August 2021
This week’s update from Washington State showing vaccine breakthrough cases and which Sars-CoV-2 variant is causing them up to 4th August 2021. More...
Preprint: C.37 Lambda variant exhibits higher infectivity and immune resistance
“In this study, we demonstrated that three mutations, the RSYLTPGD246-253N, L452Q and F490S mutations, respectively confer resistance to the vaccine-induced antiviral immunity. More...
Github: AY.3.1 – a new sub-lineage of AY.3 concentrated in Mississippi, USA
AY.3 is the main variant being sequenced weekly in Mississippi (>70% of all recent sequences), most falling within this sub-lineage of AY.3 that is distinguished by the mutations described below (>60% of all recent sequences). More...
USA: Cape Cod superspreader – 79% of breakthrough infections symptomatic, 80% of hospitalized were fully vaccinated
Scientists researching the Provincetown, Cape Cod Covid outbreak reported that 79 percent of the breakthrough infections were symptomatic. More...