Alliance for Pandemic Preparedness

August 24, 2020

Modeling Contact Tracing Strategies for COVID-19 in the Context of Relaxed Physical Distancing Measures

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  • Bilinski et al. developed a model to examine the potential for contact tracing to reduce the spread of SARS-CoV-2 and tested scenarios including relaxation of physical distancing measures. When all individuals identified through contact tracing were tested and isolation and quarantine measures were at 90% efficacy, Rt was reduced by 46%. When community detection of symptomatic index cases and tracing of contacts were less than 50%, simulated contract tracing programs did not reduce Rt by more than 10%.

Bilinski et al. (Aug 21, 2020). Modeling Contact Tracing Strategies for COVID-19 in the Context of Relaxed Physical Distancing Measures. JAMA Network Open. https://doi.org/10.1001/jamanetworkopen.2020.19217