Emerging Infectious Diseases (Jan 2021)

Impact of a Nationwide Lockdown on SARS-CoV-2 Transmissibility, Italy

  • Giorgio Guzzetta,
  • Flavia Riccardo,
  • Valentina Marziano,
  • Piero Poletti,
  • Filippo Trentini,
  • Antonino Bella,
  • Xanthi Andrianou,
  • Martina Del Manso,
  • Massimo Fabiani,
  • Stefania Bellino,
  • Stefano Boros,
  • Alberto Mateo Urdiales,
  • Maria Fenicia Vescio,
  • Andrea Piccioli,
  • Silvio Brusaferro,
  • Giovanni Rezza,
  • Patrizio Pezzotti,
  • Marco Ajelli,
  • Stefano Merler

DOI
https://doi.org/10.3201/eid2701.202114
Journal volume & issue
Vol. 27, no. 1
pp. 267 – 270

Abstract

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On March 11, 2020, Italy imposed a national lockdown to curtail the spread of severe acute respiratory syndrome coronavirus 2. We estimate that, 14 days after lockdown, the net reproduction number had dropped below 1 and remained stable at »0.76 (95% CI 0.67–0.85) in all regions for >3 of the following weeks.

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