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SARS-CoV-2 evolution during treatment of chronic infection

  • Royal Papworth Hospital ICU
  • , Addenbrooke’s Hospital ICU
  • , Cambridge & Peterborough Foundation Trust
  • , ANPC & Centre for Molecular Medicine & Innovative Therapeutics
  • , NIHR BioResource
  • , The COVID-19 Genomics UK (COG-UK) Consortium
  • , The CITIID-NIHR BioResource COVID-19 Collaboration
  • , Principal investigators
  • , CRF & volunteer research nurses
  • , Sample logistics
  • , Sample processing & data acquisition
  • , Clinical data collection
  • University College London
  • Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID)
  • Department of Medicine
  • Cambridge University Hospitals NHS Foundation Trust
  • University of Cambridge
  • University of Oxford
  • Medway School of Pharmacy
  • Wellcome Sanger Centre
  • University Hospital Basel
  • Botnar Research Centre for Child Health
  • University of Cambridge
  • Department of Haematology
  • Addenbrookes Hospital
  • Heart and Lung Research Institute
  • Papworth Hospital
  • Department of Paediatrics
  • Cambridge Institute for Medical Research
  • Department of Veterinary Medicine
  • The Rosie Maternity Hospital
  • Cancer Research UK Cambridge Institute
  • Department of Oncology
  • Wellcome Trust Genome Campus
  • University of Colorado School of Medicine
  • Fulbourn Hospital
  • Murdoch University
  • Department of Public Health and Primary Care
  • University of Portsmouth
  • University of Birmingham
  • Cardiff University School of Medicine
  • Public Health Wales
  • University of Oxford
  • King's College London
  • University of Brighton
  • Guys and St Thomas' NHS Foundation Trust
  • University Hospital Southampton NHS Foundation Trust
  • University of Southampton, Faculty of Medicine
  • University of Southampton
  • St Thomas' Hospital
  • Public Health England
  • University of Exeter
  • Forster Green Hospital
  • Queen's University of Belfast
  • University of Nottingham
  • East Kent Hospitals University NHS Foundation Trust
  • University of Kent
  • Ellison Building
  • MRC-University of Glasgow Centre for Virus Research
  • University of Sheffield
  • Portsmouth Hospitals University NHS Trust
  • NHS Lothian
  • University of Edinburgh
  • Quadram Institute Bioscience
  • University of East Anglia
  • Public Health Scotland
  • East Birmingham Hospital
  • Oxford University Hospitals NHS Foundation Trust
  • Brighton and Sussex University Hospitals
  • University of Warwick
  • University of Liverpool School of Medicine
  • Imperial College London
  • Newcastle upon Tyne NHS Hospitals Foundation Trust
  • University Hospitals Coventry and Warwickshire NHS Trust
  • Betsi Cadwaladr University Health Board
  • UCL Institute of Child Health and Great Ormond Street Hospital for Children NHS Foundation Trust
  • Cardiff and Vale University Health Board
  • Gloucestershire Hospitals NHS Foundation Trust
  • Wye valley NHS Trust
  • Sandwell and West Birmingham NHS Trust
  • Norfolk and Norwich University Hospitals NHS Foundation Trust
  • Royal Devon and Exeter National Health Service Foundation Trust
  • Barking, Havering and Redbridge University Hospitals NHS Trust
  • Queen Elizabeth Hospital Birmingham
  • Kettering General Hospital
  • University Hospitals of Leicester NHS Trust
  • Imperial College Healthcare NHS Trust
  • North West London Pathology
  • Royal Free NHS Trust
  • South Tees Hospitals NHS Foundation Trust
  • North Cumbria Integrated Care NHS Foundation Trust
  • North Tees and Hartlepool NHS Foundation Trust
  • County Durham and Darlington NHS Foundation Trust
  • Queen's Medical Centre
  • Northern Lincolnshire & amp; Goole NHS Foundation Trust
  • Basingstoke Hospital
  • University of Surrey
  • Swansea University
  • Ministry of Health Colombo
  • MRC Biostatistics Unit
  • Liverpool Clinical Laboratories
  • Imperial College London
  • Health Data Research UK
  • Hampshire Hospitals NHS Foundation Trust
  • Public Health
  • London School of Hygiene and Tropical Medicine
  • NHS Greater Glasgow and Clyde
  • Leeds Teaching Hospitals NHS Trust
  • University Hospital of South Manchester
  • Health Services Laboratories
  • Maidstone and Tunbridge Wells NHS Trust
  • Gateshead Health NHS Foundation Trust
  • Norfolk County Council
  • Ipswich Hospital NHS Trust
  • Princess Alexandra Hospital
  • Sheffield Teaching Hospitals NHS Foundation Trust
  • University of Glasgow, G11 6NT
  • Newcastle University
  • MRC Laboratory of Molecular Biology
  • University of Amsterdam
  • NIHR Cambridge Bioresource
  • UNAM
  • Africa Health Research Institute

Research output: Contribution to a Journal (Peer & Non Peer)Articlepeer-review

761 Citations (Scopus)

Abstract

The spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is critical for virus infection through the engagement of the human ACE2 protein1 and is a major antibody target. Here we show that chronic infection with SARS-CoV-2 leads to viral evolution and reduced sensitivity to neutralizing antibodies in an immunosuppressed individual treated with convalescent plasma, by generating whole-genome ultra-deep sequences for 23 time points that span 101 days and using in vitro techniques to characterize the mutations revealed by sequencing. There was little change in the overall structure of the viral population after two courses of remdesivir during the first 57 days. However, after convalescent plasma therapy, we observed large, dynamic shifts in the viral population, with the emergence of a dominant viral strain that contained a substitution (D796H) in the S2 subunit and a deletion (ΔH69/ΔV70) in the S1 N-terminal domain of the spike protein. As passively transferred serum antibodies diminished, viruses with the escape genotype were reduced in frequency, before returning during a final, unsuccessful course of convalescent plasma treatment. In vitro, the spike double mutant bearing both ΔH69/ΔV70 and D796H conferred modestly decreased sensitivity to convalescent plasma, while maintaining infectivity levels that were similar to the wild-type virus.The spike substitution mutant D796H appeared to be the main contributor to the decreased susceptibility to neutralizing antibodies, but this mutation resulted in an infectivity defect. The spike deletion mutant ΔH69/ΔV70 had a twofold higher level of infectivity than wild-type SARS-CoV-2, possibly compensating for the reduced infectivity of the D796H mutation. These data reveal strong selection on SARS-CoV-2 during convalescent plasma therapy, which is associated with the emergence of viral variants that show evidence of reduced susceptibility to neutralizing antibodies in immunosuppressed individuals.

Original languageEnglish
Pages (from-to)277-282
Number of pages6
JournalNature
Volume592
Issue number7853
DOIs
Publication statusPublished - 8 Apr 2021
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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