| Authors: |
Croci R; These authors contributed equally to this work and share first authorship.; Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark.; ECDC Fellowship Programme, Field Epidemiology path (EPIET), European Centre for Disease Prevention and Control (ECDC), Stockholm, Sweden., Young JJ; These authors contributed equally to this work and share first authorship.; Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark., Emborg HD; Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark., Valentiner-Branth P; Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark., Ethelberg S; Department of Public Health, Global Health Section, University of Copenhagen, Copenhagen, Denmark.; Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark., Hansen CH; Department of Infectious Disease Epidemiology and Prevention, Statens Serum Institut, Copenhagen, Denmark. |