Applying prospective genomic surveillance to support investigation of hospital-onset COVID-19.

Competing Interests: CJRI, CJ, and DDA report funding to their institution from MRC. MPW reports grants from Wellcome. SJP reports receiving consulting fees for participating on the Pfizer Coronavirus External Advisory Board and honoraria from SVB Leerink. IG reports grants from Wellcome and MRC. MET reports grants from Academy of Medical Sciences and The Health Foundation, non-financial support from the NIHR Cambridge Biomedical Research Centre, book royalties from Oxford University Press, and honoraria from Wellcome Sanger Institute and University of Cambridge. All other authors declare no competing interests.