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High attack rate in a large care home outbreak of SARS-CoV-2 BA.2.86, East of England, August 2023
- Lucy Reeve1 , Elise Tessier2 , Amy Trindall1 , Nurin Iwani Binti Abdul Aziz2 , Nick Andrews3 , Matthias Futschik4 , Jessica Rayner5 , Alexis Didier’Serre5 , Rebecca Hams1,5 , Natalie Groves6 , Eileen Gallagher6 , Rachael Graham6 , Beatrix Kele7 , Katja Hoschler7 , Tom Fowler4 , Edward Blandford4 , Hamid Mahgoub5 , Jorg Hoffmann5 , Mary Ramsay3 , Gavin Dabrera2 , Meera Chand7 , Maria Zambon7 , Ashley Sharp1 , Ellen Heinsbroek1,* , Jamie Lopez Bernal2,*
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View Affiliations Hide AffiliationsAffiliations: 1 Field Service East of England, UK Health Security Agency, Cambridge, United Kingdom 2 COVID-19 Vaccines and Epidemiology Division, UK Health Security Agency, London, United Kingdom 3 Immunisations and Countermeasures Division, UK Health Security Agency, London, United Kingdom 4 Public Health and Clinical Oversight, COVID-19 Testing, Clinical and Public Health Division, UK Health Security Agency, London, United Kingdom 5 East of England Health Protection Team, UK Health Security Agency, Cambridge, United Kingdom 6 TB, Acute Respiratory, Zoonoses, Emerging infection, and Travel Health Division, UK Health Security Agency, London, United Kingdom 7 Respiratory Virus Unit, UK Health Security Agency, London, United Kingdom * These authors contributed equally to this work and share last authorship.Lucy Reevelucy.reeve ukhsa.gov.uk
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Citation style for this article: Reeve Lucy, Tessier Elise, Trindall Amy, Abdul Aziz Nurin Iwani Binti, Andrews Nick, Futschik Matthias, Rayner Jessica, Didier’Serre Alexis, Hams Rebecca, Groves Natalie, Gallagher Eileen, Graham Rachael, Kele Beatrix, Hoschler Katja, Fowler Tom, Blandford Edward, Mahgoub Hamid, Hoffmann Jorg, Ramsay Mary, Dabrera Gavin, Chand Meera, Zambon Maria, Sharp Ashley, Heinsbroek Ellen, Lopez Bernal Jamie. High attack rate in a large care home outbreak of SARS-CoV-2 BA.2.86, East of England, August 2023. Euro Surveill. 2023;28(39):pii=2300489. https://doi.org/10.2807/1560-7917.ES.2023.28.39.2300489 Received: 08 Sept 2023; Accepted: 27 Sept 2023
Abstract
We investigated an outbreak of SARS-CoV-2 variant BA.2.86 in an East of England care home. We identified 45 infections (33 residents, 12 staff), among 38 residents and 66 staff. Twenty-nine of 43 PCR swabs were sequenced, all of which were variant BA.2.86. The attack rate among residents was 87%, 19 were symptomatic, and one was hospitalised. Twenty-four days after the outbreak started, no cases were still unwell. Among the 33 resident cases, 29 had been vaccinated 4 months earlier.
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