Transmission of COVID-19 (research published before 20 March 2020)

Added July 28, 2020

Citation: Alimohamadi Y, Taghdir M, Sepandi M. Estimate of the basic reproduction number for COVID-19: a systematic review and meta-analysis. Journal of Preventive Medicine and Public Health. 2020;53(3):151-7.

What is this? The basic reproduction number (R0) for COVID-19 shows how commonly the virus (SARS-CoV-2) is transmitted from person to person.

In this rapid review, the authors searched for studies that had estimated the reproduction number of COVID-19. They restricted their searches to articles published in 2020. The date of the search is not reported but the review was published on 20 March 2020. They included 23 studies, which were all from China.

What was found: At the time of this review, the included studies showed that on average each person with COVID-19 transmitted the infection to between 3 and 4 people (pooled R0 = 3.32).

 

Disclaimer: This summary has been written by staff and volunteers of Evidence Aid in order to make the content of the original document accessible to decision makers who are searching for the available evidence on the coronavirus (COVID-19) but may not have the time, initially, to read the original report in full. This summary is not intended as a substitute for the medical advice of physicians, other health workers, professional associations, guideline developers, or national governments and international agencies. If readers of this summary think that the evidence that is presented within it is relevant to their decision-making they should refer to the content and details of the original article, and the advice and guidelines offered by other sources of expertise, before making decisions. Evidence Aid cannot be held responsible for any decisions made about the coronavirus (COVID-19) on the basis of this summary alone.

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