Delta-AY.4 Archives - Coronaheadsup.com

Preprint: Identification of Deltacron recombinants in the United States

In this report, we describe viruses with recombinant genomes containing signature mutations from Delta and Omicron variants. More...

March 23, 2022March 23, 2022 Coronaheadsup.com America, BA.1, BA.1.1, Coronavirus, Delta, Delta-AY.4, Deltacron, Genome, Infection, Omicron, Recombination, USA

Preprint: Identification of a Deltacron AY.4/BA.1 cluster in southern France

Structural analysis of the recombinant spike suggested its hybrid content could optimize viral binding to the host cell membrane. More...

March 10, 2022March 13, 2022 Coronaheadsup.com BA.1, Coronavirus, Delta, Delta-AY.4, Deltacron, Europe, Evolution, France, Genome, Infection, Omicron, PCR, Recombination, Testing, Transmission

France: At least 10 cases of BA.1/AY.4 Deltacron recombinants confirmed

As of 01/21/2022, 10 sequences that may correspond to a Delta/Omicron recombinant have been identified in France… this recombinant has potentially already been circulating at very low levels since mid-January. More...

March 1, 2022March 1, 2022 Coronaheadsup.com BA.1, Co-infection, Coronavirus, Delta, Delta-AY.4, Deltacron, Europe, France, Genome, Infection, Omicron, Recombination, Testing, Transmission

Europe: potential Deltacron recombinants in Denmark, France, Netherlands

Not confirmed yet, but worth flagging, are potential Deltacron recombinants of Delta AY.4 and Omicron BA.1/BA.2 found in Denmark, France and Netherlands. More...

February 18, 2022 Coronaheadsup.com BA.1, BA.2, Coronavirus, Delta, Delta-AY.4, Deltacron, Denmark, Europe, France, Infection, Netherlands, Omicron, Recombination, Transmission

USA: 40% vaccine breakthrough in Massachusetts last week

Breakthrough infections accounted for about 40% of all cases reported in Massachusetts last week. More...

September 3, 2021 Coronaheadsup.com AY.3, AY.4, B.1.617.2, Coronavirus, Deaths, Delta, Delta-AY.3, Delta-AY.4, Hospitalization, Infection, Janssen, Massachusetts, Moderna, Pfizer/Biontech, Transmission, USA, Vaccine, Vaccine Breakthrough, Vaccine Waning, Variants

UK: Vaccine breakthrough rate for Delta infections is 23% in Technical Briefing 22

The latest UK PHE Technical Briefing 22 has just been published, and it shows that the vaccine breakthrough rate for Delta infections in the UK continues to increase. More...