The COVID-19 pandemic has created an urgent need for models that can project epidemic
trends, explore intervention scenarios, and estimate resource needs. Here we describe the …

The COVID-19 pandemic has seen the emergence of digital contact tracing to help to
prevent the spread of the disease. A mobile phone app records proximity events between …

Abstract The coronavirus disease 2019 (COVID-19) has resulted in an ongoing pandemic
worldwide. Countries have adopted non-pharmaceutical interventions (NPI) to slow down …

To the Editor—Digital contact tracing is a public-health intervention. Real-time monitoring
and evaluation of the effectiveness of app-based contact tracing is key for improvement and …

Initial COVID-19 containment in the United States focused on limiting mobility, including
school and workplace closures. However, these interventions have had enormous societal …

In the wake of the pandemic of coronavirus disease 2019 (COVID-19), contact tracing has
become a key element of strategies to control the spread of severe acute respiratory …

Background: Given the magnitude and speed of SARS-CoV-2 transmission, achieving timely
and effective manual contact tracing has been a challenging task. Early in the pandemic …

With the relative ubiquity of smartphones, contact tracing and exposure notification apps
have been looked to as novel methods to help reduce the transmission of COVID-19. Many …

The efficacy of digital contact tracing against coronavirus disease 2019 (COVID-19)
epidemic is debated: Smartphone penetration is limited in many countries, with low …

Background: During the COVID-19 pandemic, one way to reduce further transmissions of
SARS-CoV-2 is the widespread use of contact tracing apps. Such apps keep track of …