Epidemiological data and genome sequencing reveals that nosocomial transmission of SARS-CoV-2 is underestimated and mostly mediated by a small number of highly infectious individuals
Lumley SF., Constantinides B., Sanderson N., Rodger G., Street TL., Swann J., Chau KK., O'Donnell D., Warren F., Hoosdally S., O'Donnell A-M., Walker TM., Stoesser NE., Butcher L., Peto TEA., Crook DW., Jeffery K., Matthews PC., Eyre DW.