Investigation of outbreak cases infected with the SARS-CoV-2 B.1.640 variant in a fully vaccinated elderly population, Normandy, France, November to December 2021
EUROSURVEILLANCE(2022)
Abstract
Three confirmed infections with the SARS-CoV-2 B.1.640 variant under monitoring were reported in Normandy, north- western France in late November 2021. Investigations led to the identification of two events linked to the same cluster. A total of 75 confirmed and probable B.1.640 cases were reported. All had completed the primary vaccination series. Sixtytwo cases were older than 65 years. Fifty- six cases had symptoms and four were hospitalised. This investigation provides preliminary results concerning a variant with limited information currently available.
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Key words
COVID-19,Cluster,Epidemiology,Outbreak investigation,SARS-CoV-2
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