USA/UK: 2 separate clades of Delta coronavirus variant with K417N – AY.1 and AY.2

Through routine scanning of variation in Delta, a small number of sequences were detected which had acquired the spike protein mutation K417N.  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...

France coronavirus “Breton Variant” French Health Department statement

Variant de clade 20C ayant émergé en Bretagne

Un cluster d’infections par un variant de clade 20C (« variant 20C/H655Y »), a été détecté dans un hôpital des Côtes d’Armor, avec des cas survenus entre janvier et mars 2021.  More...