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pinball1970
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- SARS-CoV-2 501Y.V2 escapes neutralization by south African Donar plasma. 18.1.21
SARS-CoV-2 501Y.V2, a novel lineage of the coronavirus causing COVID-19, contains multiple mutations within two immunodominant domains of the spike protein. Here we show that this lineage exhibits complete escape from three classes of therapeutically relevant monoclonal antibodies. Furthermore 501Y.V2 shows substantial or complete escape from neutralizing antibodies in COVID-19 convalescent plasma.
SARS-CoV-2 501Y.V2 escapes neutralization by south African Donar plasma
from the abstract
SARS-CoV-2 501Y.V2, a novel lineage of the Coronavirus causing COVID-19, contains multiple mutations within two immunodominant domains of the spike protein. Here we show that this lineage exhibits complete escape from three classes of therapeutically relevant monoclonal antibodies. Furthermore 501Y.V2 shows substantial or complete escape from neutralizing antibodies in COVID-19 convalescent plasma. These data highlight the prospect of reinfection with antigenically distinct variants and may foreshadow reduced efficacy of current spike-based vaccines.
https://www.biorxiv.org/content/10.1101/2021.01.18.427166v1.full.pdfThe paper states that.
"spike mutations in the 501Y.V2 lineage confer neutralization escape from multiple classes of SARS-CoV-2 directed monoclonal antibodies. Furthermore, we observe significantly increased neutralization resistance of 501Y.V2 to plasma from individuals previously infected with SARS-CoV-2, with implications for both rates of re-infection, and vaccine effectiveness."
Also.
" Ultimately, the correlates of protection against SARS-CoV-2 infection and severe COVID-19 disease remain undetermined and rely upon ongoing large-scale clinical trials. "
UK government statements are talking about the new strains more and more now and the take away is that the vaccine will still be effective although the language seems to have changed from when the vaccine was first rolled out.
It would be good to have a professional view of the paper from @atyy @jim mcnamara @Dale @berkeman @BillTre @Ygggdrasil off the top of my head
from the abstract
SARS-CoV-2 501Y.V2, a novel lineage of the Coronavirus causing COVID-19, contains multiple mutations within two immunodominant domains of the spike protein. Here we show that this lineage exhibits complete escape from three classes of therapeutically relevant monoclonal antibodies. Furthermore 501Y.V2 shows substantial or complete escape from neutralizing antibodies in COVID-19 convalescent plasma. These data highlight the prospect of reinfection with antigenically distinct variants and may foreshadow reduced efficacy of current spike-based vaccines.
https://www.biorxiv.org/content/10.1101/2021.01.18.427166v1.full.pdfThe paper states that.
"spike mutations in the 501Y.V2 lineage confer neutralization escape from multiple classes of SARS-CoV-2 directed monoclonal antibodies. Furthermore, we observe significantly increased neutralization resistance of 501Y.V2 to plasma from individuals previously infected with SARS-CoV-2, with implications for both rates of re-infection, and vaccine effectiveness."
Also.
" Ultimately, the correlates of protection against SARS-CoV-2 infection and severe COVID-19 disease remain undetermined and rely upon ongoing large-scale clinical trials. "
UK government statements are talking about the new strains more and more now and the take away is that the vaccine will still be effective although the language seems to have changed from when the vaccine was first rolled out.
It would be good to have a professional view of the paper from @atyy @jim mcnamara @Dale @berkeman @BillTre @Ygggdrasil off the top of my head
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