Acknowledgements
The authors would like to acknowledge the staff of the University of
Birmingham Clinical Immunology Service for facilitating laboratory
studies. The convalescent health care worker study COCO was carried out
at the National Institute for Health Research (NIHR)/Wellcome Trust
Birmingham Clinical Research Facility.
This study was funded as part of the UK Coronavirus Immunology
Consortium funded by NIHR and UKRI. This paper presents independent
research supported by the NIHR Birmingham Biomedical Research Centre at
the University Hospitals Birmingham NHS Foundation Trust and the
University of Birmingham.