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The COVID-19 pandemic has highlighted the need for innovative solutions to monitor and control the spread of infectious diseases. With the potential for future pandemics and the risk of outbreaks particularly in academic institutions, there…

Cryptography and Security · Computer Science 2023-07-21 Shobhit Aggarwal , Arnab Purkayastha

As we enter the control phase of the COVID-19 pandemic, many efforts have been dedicated to developing smartphone-based contact tracing apps in order to automatically identify people that a person with COVID-19 might have infected. These…

Computers and Society · Computer Science 2020-04-17 Kristof Roomp , Nuria Oliver

This paper describes techniques to help with COVID-19 automated contact tracing, and with the restoration efforts. We describe a decentralized protocol for ``proof-of-contact'' in zero knowledge where a person can publish a short…

Cryptography and Security · Computer Science 2020-07-21 Zachary Ratliff , Joud Khoury

With the COVID-19 pandemic, quarantines took place across the globe. In the aim of stopping or slowing the progression of the COVID-19 contamination, many countries have deployed a contact tracing system to notify persons that be in contact…

Cryptography and Security · Computer Science 2020-10-09 Mohamed-Lamine Messai , Hamida Seba

Contact tracing is a very effective way to control the COVID-19-like pandemics. It aims to identify individuals who closely contacted an infected person during the incubation period of the virus and notify them to quarantine. However, the…

Cryptography and Security · Computer Science 2021-04-07 Seham A. Alansar , Mahmoud M. Badr , Mohamed Mahmoud , Waleed Alasmary

Today, tracking and controlling the spread of a virus is a crucial need for almost all countries. Doing this early would save millions of lives and help countries keep a stable economy. The easiest way to control the spread of a virus is to…

Cryptography and Security · Computer Science 2020-10-26 Didem Demirag , Erman Ayday

The goal of this paper is to shed some light on the usefulness of a contact tracing smartphone app for the containment of the COVID-19 pandemic. We review the basics of contact tracing during the spread of a virus, we contextualize the…

Computers and Society · Computer Science 2020-07-30 Leonardo Maccari , Valeria Cagno

The ongoing COVID-19 pandemic is the first epidemic in human history in which digital contact-tracing has been deployed at a global scale. Tracking and quarantining all the contacts of individuals who test positive to a virus can help…

Physics and Society · Physics 2021-02-26 Aleix Bassolas , Andrea Santoro , Sandro Sousa , Silvia Rognone , Vincenzo Nicosia

The present paper addresses the task of reliably identifying critical contacts by using COVID-19 tracing apps. A reliable classification is crucial to ensure a high level of protection, and at the same time to prevent many people from being…

Signal Processing · Electrical Eng. & Systems 2020-08-12 Christoph Günther , Daniel Günther

How to avoid a second wave of COVID-19 after reopening the economy is a pressing question. The extremely high basic reproductive number $R_0$ (5.7 to 6.4, shown in new studies) of SARS-CoV-2 further complicates the challenge. Here we assess…

Social and Information Networks · Computer Science 2020-08-07 Yu-Chen Ho , Yi-Hsuan Chen , Shen-Hua Hung , Chien-Hao Huang , Poga Po , Chung-Hsi Chan , Di-Kai Yang , Yi-Chin Tu , Tyng-Luh Liu , Chi-Tai Fang

Contact tracing has existed in various forms for a very long time. With the rise of COVID-19, the concept has become increasingly important to help slow the spread of the virus. One approach to modernizing contact tracing is to introduce…

Computers and Society · Computer Science 2025-09-04 Lucas Draper

Contact tracing is of paramount importance when it comes to preventing the spreading of infectious diseases. Contact tracing is usually performed manually by authorized personnel. Manual contact tracing is an inefficient, error-prone,…

Machine Learning · Computer Science 2021-12-22 Pai Chet Ng , Petros Spachos , Konstantinos Plataniotis

Since the onset of the COVID-19's global spread we have been following the debate around contact tracing apps -- the tech-enabled response to the pandemic. As corporations, academics, governments, and civil society discuss the right way to…

Computers and Society · Computer Science 2020-05-28 Piotr Sapiezynski , Johanna Pruessing , Vedran Sekara

In limiting the rapid spread of highly infectious diseases like Covid-19 means to immediately identify individuals who had been in contact with a newly diagnosed infected person have proven to be important. Such potential victims can go…

Social and Information Networks · Computer Science 2020-04-01 Adam Wolisz

Digital contact tracing is a public health intervention. It should be integrated with local health policy, provide rapid and accurate notifications to exposed individuals, and encourage high app uptake and adherence to quarantine. Real-time…

There is growing interest in technology-enabled contact tracing, the process of identifying potentially infected COVID-19 patients by notifying all recent contacts of an infected person. Governments, technology companies, and research…

Cryptography and Security · Computer Science 2020-12-18 Lucy Simko , Ryan Calo , Franziska Roesner , Tadayoshi Kohno

In 2020 the coronavirus outbreak changed the lives of people worldwide. After an initial time period in which it was unclear how to battle the virus, social distancing has been recognised globally as an effective method to mitigate the…

Computers and Society · Computer Science 2020-11-16 Luca Bedogni , Shakila Khan Rumi , Flora Salim

We present a mobile app solution to help the containment of an epidemic outbreak by keeping track of possible infections in the incubation period. We consider the particular case of an infection which primarily spreads among people through…

Computers and Society · Computer Science 2020-04-06 Marco Faggian , Michele Urbani , Luca Zanotto

Contact tracing is an important instrument for national health services to fight epidemics. As part of the COVID-19 situation, many proposals have been made for scaling up contract tracing capacities with the help of smartphone…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-06-03 Paulo Esteves-Verissimo , Jérémie Decouchant , Marcus Völp , Alireza Esfahani , Rafal Graczyk

A known drawback of `decentralised' contact tracing architectures is that users who have been in contact with an infected person are able to precisely identify the relevant contact, and thereby perhaps identify the infected person. In their…

Cryptography and Security · Computer Science 2020-07-03 David Mestel