Alliance for Pandemic Preparedness

April 22, 2020

Connecting clusters of COVID-19: an epidemiological and serological investigation. Lancet Infectious disease (2020)

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  • Yong et al describe how active case finding and contact tracing were used to identify cases and establish links between three clusters of COVID -19 in Singapore. The investigations used both SARS-CoV-2 serological assays and traditional epidemiological methods to confirm transmission between cases.  This study is important to those establishing links among locally transmitted COVID-19 cases and tracing the transmission chain to an imported or initial source.

Yong et al. (April 22, 2020). Connecting clusters of COVID-19: an epidemiological and serological investigation. Lancet Infectious disease (2020). Pre-print downloaded Apr 22 from https://doi.org/10.1016/S1473-3099(20)30273-5