Hao-Yuan Cheng

TL;DR: High transmissibility of COVID-19 before and immediately after symptom onset suggests that finding and isolating symptomatic patients alone may not suffice to interrupt transmission, and that more generalized measures might be required, such as social distancing.

TL;DR: For symptomatic individuals, the timing of transmission of SARS-CoV-2 is more strongly linked to the onset of clinical symptoms of COVID-19 than to the time since infection, and the pre-symptomatic infectious period extended further back in time for individuals with longer incubation periods.

TL;DR: High transmissibility of COVID-19 near symptom onset suggests that finding and isolating symptomatic patients alone may not suffice to contain the epidemic, and more generalized social distancing measures are required.

TL;DR: The timing of transmission of SARS-CoV-2 was more directly linked to the onset of clinical symptoms of COVID-19 than to the time since infection, which underlines the critical importance of individuals distancing themselves from others as soon as they notice any symptoms, even if mild.

TL;DR: In this article, the authors compared and evaluated the effectiveness of case-based and population-based interventions for COVID-19 in Taiwan, and estimated that case detection, contact tracing, and 14-day quarantine of close contacts (regardless of symptoms) were estimated to decrease the reproduction number from the counterfactual value of 2.50 to 1.53.