Indirect Virus Transmission in Cluster of COVID-19 Cases, Wenzhou, China, 2020

Emerg Infect Dis. 2020 Jun;26(6):1343-1345. doi: 10.3201/eid2606.200412. Epub 2020 Jun 17.


To determine possible modes of virus transmission, we investigated a cluster of coronavirus disease cases associated with a shopping mall in Wenzhou, China. Data indicated that indirect transmission of the causative virus occurred, perhaps resulting from virus contamination of common objects, virus aerosolization in a confined space, or spread from asymptomatic infected persons.

Keywords: 2019 novel coronavirus disease; COVID-19; China; SARS-CoV-2; Wenzhou; aerosolization; cluster; coronavirus; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Betacoronavirus
  • COVID-19
  • China / epidemiology
  • Coronavirus Infections / transmission*
  • Female
  • Humans
  • Infectious Disease Incubation Period
  • Male
  • Pandemics
  • Pneumonia, Viral / transmission*
  • SARS-CoV-2
  • Young Adult