SARS-CoV-2 Transmission Dynamics Should Inform Policy
16 Pages Posted: 21 Sep 2020
Date Written: September 14, 2020
It is generally agreed that striking a balance between resuming economic and social activities and keeping the effective reproductive number (R0) below 1 using non-pharmaceutical interventions is an important goal until and even after effective vaccines become available. Therefore, the need remains to understand how the virus is transmitted in order to identify high-risk environments and activities that disproportionately contribute to its spread so that effective preventative measures could be put in place. Contact tracing and household studies in particular provide robust evidence about the parameters of transmission. In this viewpoint, we discuss the available evidence from large-scale, well-conducted contact tracing studies from across the world and argue that SARS-CoV-2 transmission dynamics should inform policy decisions about mitigation strategies for targeted interventions according to the needs of the society by directing attention to the settings, activities and socioeconomic factors associated with the highest risks of transmission.
Note: Funding: None to declare
Declaration of Interest: MC, CB, TS have nothing to declare. JM has consulted for Kaiser Permanente Northern California on a research grant from Gilead Sciences and is supported in part by the U.S. National Institute of Allergy and Infectious Diseases [K01 AI122853].
Keywords: COVID-19, coronavirus, SARS-CoV-2, novel coronavirus, transmission
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