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. 2020 Oct:99:374-380.
doi: 10.1016/j.ijid.2020.07.073. Epub 2020 Aug 5.

Cluster infections play important roles in the rapid evolution of COVID-19 transmission: A systematic review

Tao Liu  1 , Dexin Gong  1 , Jianpeng Xiao  1 , Jianxiong Hu  1 , Guanhao He  1 , Zuhua Rong  1 , Wenjun Ma  2
Affiliations

Cluster infections play important roles in the rapid evolution of COVID-19 transmission: A systematic review

Tao Liu et al. Int J Infect Dis. 2020 Oct.

Abstract

Objectives: To summarise the major types of SARS-CoV-2 cluster infections worldwide through a comprehensive systematic review.

Methods: All studies published between 01 January-15 June 2020 on COVID-19 cluster infections in English electronic databases were searched, including PubMed, Embase, Web of Knowledge, and Scopus. All included studies were independently screened and evaluated by two authors, and information from each study was extracted using a standard form.

Results: Sixty-five studies were included, which involved 108 cluster infections from 13 countries, areas or territories. Seventy-two (66.7%) of the cluster infections were reported in China. The major types of cluster infections were families, community transmission, nosocomial infection, gatherings, transportation, shopping malls, conferences, tourists, religious organisations, workers, prisons, offices, and nursing homes.

Conclusions: The SARS-CoV-2 can be transmitted in various circumstances, and cluster infections play an important role in the rapid evolution of COVID-19 transmission. Prevention and control measures such as social distancing must be strictly implemented to contain these cluster infections.

Keywords: COVID-19; Cluster infection; Novel coronavirus; SARS-CoV-2; Systematic review.

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Conflict of interest statement

None declared.

Figures

Figure 1
Figure 1
Flowchart for literature search and selection in systematic review.
See this image and copyright information in PMC

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