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...

Canada: 82% Delta vaccine breakthrough in Calgary hospital coronavirus outbreak

An outbreak of the Delta coronavirus variant at the Foothills Medical Centre in Calgary has seen 16 patients and six health-care workers tested positive for the variant. ...More...

SARS-CoV-2 coronavirus spike protein gene variants with N501T and G142D mutation dominated infections in US minks

We analyzed all animal-derived (977), all Canadian (19,529) and US (173,277) SARS-CoV-2 sequences deposited in GISAID from December 2019 to March 12, 2021, and identified 2 dominant novel variants, the N501T-G142D variant and N501T-G142D-F486L variant, in the US mink-derived SARS-CoV-2 sequences....More...

1,039 cases of Brazilian coronavirus variant P.1 reported in Canada

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Canada: NACI recommends that AstraZeneca coronavirus vaccine should not be used in adults under 55 years of age

NACI recommends that AstraZeneca COVID-19 vaccine should not be used in adults under 55 years of age at this time while the safety signal of Vaccine-Induced Prothrombotic Immune Thrombocytopenia (VIPIT) following vaccination with AstraZeneca COVID-19 vaccine is investigated further....More...