Author: Francesco Pinotti; Laura Di Domenico; Ernesto Ortega; Marco Mancastroppa; Giulia Pullano; Eugenio Valdano; Pierre-Yves Boelle; Chiara Poletto; Vittoria Colizza
Title: Lessons learnt from 288 COVID-19 international cases: importations over time, effect of interventions, underdetection of imported cases Document date: 2020_2_25
ID: ad3tct5b_2
Snippet: The effectiveness of such measures, however, critically depends on COVID-19 epidemiology and natural history 8, 9 , as well as the volume of importations 6 . The presence of an incubation period, during which infected individuals carry on their usual activities (including travel), is a major challenge for screening controls at airports 8 . Moreover, mild non-specific symptoms and transmission before the onset of clinical symptoms 2,10 may comprom.....
Document: The effectiveness of such measures, however, critically depends on COVID-19 epidemiology and natural history 8, 9 , as well as the volume of importations 6 . The presence of an incubation period, during which infected individuals carry on their usual activities (including travel), is a major challenge for screening controls at airports 8 . Moreover, mild non-specific symptoms and transmission before the onset of clinical symptoms 2,10 may compromise infection control measures for importations and onward transmissions 9 . There is concern that imported cases may have gone undetected and contribute unknowingly to the global spread of the disease 11-15 .
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