Identifying Locations with Possible Undetected Imported Severe Acute Respiratory Syndrome Coronavirus 2 Cases by Using Importation Predictions

Emerg Infect Dis. 2020 Jul;26(7):1465-1469. doi: 10.3201/eid2607.200250. Epub 2020 Jun 21.

Abstract

Cases of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection exported from mainland China could lead to self-sustained outbreaks in other countries. By February 2020, several countries were reporting imported SARS-CoV-2 cases. To contain the virus, early detection of imported SARS-CoV-2 cases is critical. We used air travel volume estimates from Wuhan, China, to international destinations and a generalized linear regression model to identify locations that could have undetected imported cases. Our model can be adjusted to account for exportation of cases from other locations as the virus spreads and more information on importations and transmission becomes available. Early detection and appropriate control measures can reduce the risk for transmission in all locations.

Keywords: 2019 novel coronavirus disease; COVID-19; SARS-CoV-2; coronavirus; outbreak; pneumonia; respiratory infections; severe acute respiratory syndrome coronavirus 2; travelers health; viruses; zoonoses.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Betacoronavirus*
  • China / epidemiology
  • Coronavirus Infections / epidemiology*
  • Coronavirus Infections / prevention & control
  • Coronavirus Infections / transmission
  • Humans
  • Linear Models
  • Pandemics / prevention & control
  • Pneumonia, Viral / epidemiology*
  • Pneumonia, Viral / prevention & control
  • Pneumonia, Viral / transmission
  • Travel

Supplementary concepts

  • COVID-19
  • severe acute respiratory syndrome coronavirus 2