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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

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. Sixty-two 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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https://hal-normandie-univ.archives-ouvertes.fr/hal-03706394
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Submitted on : Monday, June 27, 2022 - 4:15:40 PM
Last modification on : Friday, August 5, 2022 - 9:28:15 AM

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Brice Mastrovito, Chloé Naimi, Leslie Kouam, Xavier Naudot, Lucie Fournier, et al.. 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, European Centre for Disease Prevention and Control, 2022, 27 (6), ⟨10.2807/1560-7917.ES.2022.27.6.2200078⟩. ⟨hal-03706394⟩

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