WHO: Newly designated VOC within lineage B.1.617 – update on Delta coronavirus variant

In consultation with the WHO SARS-CoV-2 Virus Evolution Working Group, WHO has determined that viruses within the lineage B.1.617 have been characterized as a VOC.  More...

NEJM: In two coronavirus vaccine breakthrough cases “examination of the SARS-CoV-2 sequences revealed that both patients were infected with variant viruses” .. “neither sequence precisely fit any known clade”

Examination of the SARS-CoV-2 sequences revealed that both patients were infected with variant viruses.  More...